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Finding the Fourth Proportional to 569,742.40, 853,487.20 and 499,700.80

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Solution

The fourth proportional to 569,742.40, 853,487.20 and 499,700.80 is: 748,563.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,742.40 : 853,487.20 = 499,700.80 : x
  2. Step 2: Convert to fraction form
    569,742.40/853,487.20 = 499,700.80/x
  3. Step 3: Cross multiply
    569,742.40x = 853,487.20 × 499,700.80
  4. Step 4: Simplify right side
    569,742.40x = 426,488,236,629.76
  5. Step 5: Solve for x
    x = 426,488,236,629.76/569,742.40
  6. Step 6: Final answer
    x = 748,563.27

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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.