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Finding the Fourth Proportional to 456,172.56, 629,492.80 and 252,211.56

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Solution

The fourth proportional to 456,172.56, 629,492.80 and 252,211.56 is: 348,037.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,172.56 : 629,492.80 = 252,211.56 : x
  2. Step 2: Convert to fraction form
    456,172.56/629,492.80 = 252,211.56/x
  3. Step 3: Cross multiply
    456,172.56x = 629,492.80 × 252,211.56
  4. Step 4: Simplify right side
    456,172.56x = 158,765,361,096.77
  5. Step 5: Solve for x
    x = 158,765,361,096.77/456,172.56
  6. Step 6: Final answer
    x = 348,037.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.