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Finding the Fourth Proportional to 510,168.70, 764,331.45 and 436,440.70

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Solution

The fourth proportional to 510,168.70, 764,331.45 and 436,440.70 is: 653,872.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,168.70 : 764,331.45 = 436,440.70 : x
  2. Step 2: Convert to fraction form
    510,168.70/764,331.45 = 436,440.70/x
  3. Step 3: Cross multiply
    510,168.70x = 764,331.45 × 436,440.70
  4. Step 4: Simplify right side
    510,168.70x = 333,585,353,070.02
  5. Step 5: Solve for x
    x = 333,585,353,070.02/510,168.70
  6. Step 6: Final answer
    x = 653,872.64

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.