The least common multiple (LCM) of 2, 3, 4, 5, and 7 is 420. The given ratio is $$ \frac{1}{2} : \frac{1}{3} : \frac{1}{4} : \frac{1}{5} : \frac{1}{7} $$. Find the minimum required amount based on the sum of the ratio terms.

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To find the minimum amount:

1. **Calculate the ratio terms using the LCM:**  
   - Multiply each fraction by the LCM (420):  
     $$
     \frac{1}{2} 	imes 420 = 210, \quad \frac{1}{3} 	imes 420 = 140, \quad \frac{1}{4} 	imes 420 = 105, \quad \frac{1}{5} 	imes 420 = 84, \quad \frac{1}{7} 	imes 420 = 60.
     $$

- The resulting ratio terms are: $$ 210 : 140 : 105 : 84 : 60 $$.

2. **Calculate the minimum required amount:**  
   - Sum of all ratio terms:  
     $$
     210 + 140 + 105 + 84 + 60 = ₹599.
     $$

Thus, the minimum required amount is **₹599**.

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