In a zoo, 40% of the number of monkeys is equal to $$\frac{4}{7}$$ of the number of chimpanzees. Find the ratio of the number of monkeys to the number of chimpanzees. <br> <input min="0" type="number" id ="imp5pg188q10_1" class="lineinput" placeholder="?" /> : <input min="0" type="number" id ="imp5pg188q10_1" class="lineinput" placeholder="?" />