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Finding the Fourth Proportional to 569,714.40, 853,445.20 and 499,672.80

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Solution

The fourth proportional to 569,714.40, 853,445.20 and 499,672.80 is: 748,521.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,714.40 : 853,445.20 = 499,672.80 : x
  2. Step 2: Convert to fraction form
    569,714.40/853,445.20 = 499,672.80/x
  3. Step 3: Cross multiply
    569,714.40x = 853,445.20 × 499,672.80
  4. Step 4: Simplify right side
    569,714.40x = 426,443,352,730.56
  5. Step 5: Solve for x
    x = 426,443,352,730.56/569,714.40
  6. Step 6: Final answer
    x = 748,521.28

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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.