173.3004999...
7649
You look at the digit in the hundred thousandths position. It is a 7, so it will round up the number so that 4.3523 is your answer.
749
827.392 to the nearest hundred thousandths is 827.39200
14.11931627 to the nearest hundred-thousandths is 14.11932
7649
949
six hundred fifty
549999
800,000
7.083 gives 7.08 to the nearest hundred.
Because the number in the thousandths place is less than 5, you would round 62.17354 to 62.17.