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Finding the Fourth Proportional to 514,674.60, 771,748.56 and 215,073.36

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Solution

The fourth proportional to 514,674.60, 771,748.56 and 215,073.36 is: 322,499.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,674.60 : 771,748.56 = 215,073.36 : x
  2. Step 2: Convert to fraction form
    514,674.60/771,748.56 = 215,073.36/x
  3. Step 3: Cross multiply
    514,674.60x = 771,748.56 × 215,073.36
  4. Step 4: Simplify right side
    514,674.60x = 165,982,555,874.36
  5. Step 5: Solve for x
    x = 165,982,555,874.36/514,674.60
  6. Step 6: Final answer
    x = 322,499.99

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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.