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Finding the Fourth Proportional to 431,366.70, 595,286.64 and 240,375.90

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Solution

The fourth proportional to 431,366.70, 595,286.64 and 240,375.90 is: 331,719.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,366.70 : 595,286.64 = 240,375.90 : x
  2. Step 2: Convert to fraction form
    431,366.70/595,286.64 = 240,375.90/x
  3. Step 3: Cross multiply
    431,366.70x = 595,286.64 × 240,375.90
  4. Step 4: Simplify right side
    431,366.70x = 143,092,561,847.98
  5. Step 5: Solve for x
    x = 143,092,561,847.98/431,366.70
  6. Step 6: Final answer
    x = 331,719.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.