Any number raised to a fraction just means that you take the number to the power of the numerator of the fraction and then root it by the denominator of the fraction.
In , we raise 624 to and then root it by which gives:
= approximately as is .
:D
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, we raise 624 to 
and then root it by 
which gives:![\sqrt[4]{624^1}](https://img.qammunity.org/2021/formulas/mathematics/high-school/p7wzbon13w9qxq4qzg4bqn49mesyk89ddg.png)
= ![\sqrt[4]{624} =](https://img.qammunity.org/2021/formulas/mathematics/high-school/plasklapgzjz1lm9vcw1m5bw7wu575uq06.png)
approximately 
as 
is 
.
:D