How do you write 4 and 374 millionths in standard form?

To write 4 and 374 millionths in standard form, you would first convert the mixed number to a decimal. 4 is the same as 4.0. Then, you add the decimal equivalent of the fractional part, which is 0.374. Therefore, 4 and 374 millionths in standard form is 4.374.