To prepare a medicine, the mass ratio of medicine powder to water is 1:80, how many kilograms of medicine can be prepared with 4.5 kilograms of medicine powder? (Solve with ratio)
配制一种药水，药粉和水的质量比是1：80，4.5千克药粉可配制多少千克的药水？(用比例解)
<gadget id="calculator">1 / 80</gadget>
<output>1/80 = around 0.0125</output>

<gadget id="calculator">(1/80) * 4.5</gadget>
<output>0.05625</output>

<gadget id="calculator">4.5 + 0.05625</gadget>
<output>4.55625</output>

<gadget id="calculator">4.55625 / (1/80)</gadget>
<output>364.5</output>

<result>364.5</result>