On a drawing with a scale of 1:300, the length of the rectangle is 4.5cm and the width is 2.8cm. What is the actual area of the rectangle in square meters?
在比例尺为1：300的图纸上，长方形的长是4.5cm，宽是2.8cm，这个长方形的实际面积是多少平方米．
<gadget id="calculator">1 / 300</gadget>
<output>1/300 = around 0.003333</output>

<gadget id="calculator">4.5 / (1/300) / 100</gadget>
<output>13.5</output>

<gadget id="calculator">2.8 / (1/300) / 100</gadget>
<output>8.4</output>

<gadget id="calculator">13.5 * 8.4</gadget>
<output>113.4</output>

<result>113.4</result>