In todays modern notation: MDCXLII and (IV)D
In roman numerals, numbers greater than 3999 use parentheses around, or a horizontal line above, the numbers that are multiplied by 1000. Writing 3999 is written as MMMCMXCIX, but the number 4500 would be written as (IV)D.
MMMMD
MMMMD or as D(V) D(V) = -500+1000*5 = 4500
The accepted convention does not permit values over MMMCMXCIX (3999) to be notated in Roman numerals (the letter M cannot be repeated more than 3 times). Breaking with convention, MMMMD would be 4500. In the middle ages, an overline would multiply the value by 1,000, while vertical lines either side of a numeral multiplied the numeral by 100. Using that convention, we could represent 4500 as 45 * 100 which would be |VL|
MMMMD or as (IV)D Numerals in brackets indicate multiplication by a thousand. (IV)D = 4*1000+500 = 4500
4500 = MMMMD
$4,500.00
4.5x103
Four thousand five hundred.
The roman empire extended for about 4500 miles from west to east.
4500
To write 3 million 4500 thousand correctly, you would express it as 3,004,500. This combines 3 million (3,000,000) and 4500 thousand (4,500,000) to get the total. However, since 4500 thousand equals 4.5 million, the combined total would be 3 million plus 4.5 million, resulting in 7.5 million, or 7,500,000.