A section of road drawn on a map at a scale of 1:3,000,000 is 5 centimeters. Now draw this section of road on a map of 1:500,000.
一段公路按1：3000000的比例尺画在地图上是5厘米，现将这段公路画在1：500000的地图上是多少．
<gadget id="calculator">1 / 3_000_000</gadget>
<output>1/3_000_000 = around 0</output>

<gadget id="calculator">5 / (1/3_000_000)</gadget>
<output>15_000_000</output>

<gadget id="calculator">1 / 500_000</gadget>
<output>1/500_000 = around 0.000002</output>

<gadget id="calculator">15_000_000 * (1/500_000)</gadget>
<output>30</output>

<result>30</result>