When school was over, her mother gave Xiaoyun an umbrella. The mother and daughter started from home and school at the same time and walked toward each other. When mother walked 1/3 of the way, Xiaoyun walked 320 meters. The speed ratio is 5:4. Find the distance from Xiaoyun's home to school.
放学时，妈妈给小芸送伞，母女俩同时从家和学校出发相向而行，当妈妈走到全程的(1/3)时，小芸走了320米，已知妈妈与小芸的速度比是5：4，求小芸家到学校的路程．
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(5/4) / (1/3)</gadget>
<output>15/4 = around 3.75</output>

<gadget id="calculator">320 * (15/4)</gadget>
<output>1_200</output>

<result>1_200</result>