Since the 7 in the 10,000s place is greater than or equal to 5, we're going to round upwards. The 3 will become a 4 when we round up. This leaves us with 5,400,000.
The correct answer is 5,400,000.
To round 5,370,288 to the nearest hundred thousand, one must look at the digit in the ten-thousands place, which is the first digit after the hundreds of thousands. In this case, it is the number 7 (since 5,370,288 has a 7 in the ten-thousands place).
Since the digit in the ten-thousands place is 5 or greater, the hundreds of thousands place is rounded up. Therefore, the number 5,370,288 is rounded to 5,400,000 when rounded to the nearest hundred thousand.
When rounding 5,370,288 to the nearest hundred thousand, we examine the ten-thousands place, which is 3. Since 3 is less than 5, we round down to 5,300,000. Thus, the final answer is 5,300,000.
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