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Finding the Fourth Proportional to 569,762.40, 853,517.20 and 499,720.80

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Solution

The fourth proportional to 569,762.40, 853,517.20 and 499,720.80 is: 748,593.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,762.40 : 853,517.20 = 499,720.80 : x
  2. Step 2: Convert to fraction form
    569,762.40/853,517.20 = 499,720.80/x
  3. Step 3: Cross multiply
    569,762.40x = 853,517.20 × 499,720.80
  4. Step 4: Simplify right side
    569,762.40x = 426,520,297,997.76
  5. Step 5: Solve for x
    x = 426,520,297,997.76/569,762.40
  6. Step 6: Final answer
    x = 748,593.27

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Why These Related Problems?

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