Using the principle of proportional relationship, the length of 1 mile on the map would be 1/3 inches
Setting up the relationship thus :
1/4 inch = 3/4 mile
x inch = 1 mile
Cross multiply :
0.75x = 0.25
Divide both sides by 0.75
0.75x/0.75 = 0.25/0.75
x = 1/3 inches
Hence, 1 mile will be 1/3 inches long on the map.
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