Look at the number which is below the hundred thousands and round it up or down. If it is a number from 1 to 4 you round it down(actually it stays the same), but if the number is 5 or greater, then round it up. In this case you round it down so the answer is 500000.
3156770 = 3200000 to the nearest hundred thousand.
2,000,345 to the nearest hundred thousand is 2,000,000
0.8394263 rounded to the nearest hundred-thousand = 0.83943
2479015 rounded to the nearest hundred thousand is 2500000.
5416755 rounded to the nearest hundred thousand is 5400000.
57,633,712 rounded to the nearest hundred thousand is 57,600,000.
Nearest hundred: 82600,Nearest ten thousand: 80000.
It is 400,000 when rounded to the nearest hundred thousand
It is then 800,000 to the nearest hundred thousand
146,389 rounded to the nearest hundred thousand is 100,000.
6,329,451 rounded to the nearest hundred thousand is 6300000
To round 125,458 to the nearest hundred thousand, you look at the hundred thousand place, which is 1 in this case. The digit to the right, in the ten thousand place, is 2. Since 2 is less than 5, you round down, resulting in 100,000 as the nearest hundred thousand.