room needs 507 square bricks with a side length of 10 decimeters. How many square bricks with a side length of 13 decimeters are needed to pave the floor? (Solve with ratio)
一个房间，用边长10分米的方砖铺地，需要507块．若用边长为13分米的方砖铺地，则需要多少块？(用比例解)
<gadget id="calculator">10 * 10 * 507</gadget>
<output>50_700</output>

<gadget id="calculator">13 * 13</gadget>
<output>169</output>

<gadget id="calculator">50_700 / 169</gadget>
<output>300</output>

<result>300</result>