Dig a rectangular foundation on a construction site, draw it on a plan with a scale of (1/1500), the length is 6 cm, and the width is 4 cm. What is the actual area of the foundation?
某建筑工地挖一个长方形的地基，把它画在比例尺是(1/1500)的平面图上，长是6厘米，宽是4厘米，这块地基的实际面积是多少？
<gadget id="calculator">1 / 1_500</gadget>
<output>1/1_500 = around 0.000667</output>

<gadget id="calculator">6 / (1/1_500) / 100</gadget>
<output>90</output>

<gadget id="calculator">4 / (1/1_500) / 100</gadget>
<output>60</output>

<gadget id="calculator">90 * 60</gadget>
<output>5_400</output>

<result>5_400</result>