In order to round the number 1478327 to the nearest 1000, we just need to check if the last three digits are greater or smaller than 500. If they are greater, we round the number to the next thousand. If they are smaller, we round down.
So, rounding the number 1478327 to the nearest 1000 we have 1,478,000.
Now, in order to round to the nearest 10000, we get the last four digits and compare to 5000. Since 8327 is greater than 5000, we round up.
So rounding to the nearest 10000 we have 1,480,000.