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Finding the Fourth Proportional to 569,718.40, 853,451.20 and 499,676.80

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Solution

The fourth proportional to 569,718.40, 853,451.20 and 499,676.80 is: 748,527.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,718.40 : 853,451.20 = 499,676.80 : x
  2. Step 2: Convert to fraction form
    569,718.40/853,451.20 = 499,676.80/x
  3. Step 3: Cross multiply
    569,718.40x = 853,451.20 × 499,676.80
  4. Step 4: Simplify right side
    569,718.40x = 426,449,764,572.16
  5. Step 5: Solve for x
    x = 426,449,764,572.16/569,718.40
  6. Step 6: Final answer
    x = 748,527.28

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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.