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Finding the Fourth Proportional to 431,470.37, 595,429.76 and 240,479.66

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Solution

The fourth proportional to 431,470.37, 595,429.76 and 240,479.66 is: 331,862.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,470.37 : 595,429.76 = 240,479.66 : x
  2. Step 2: Convert to fraction form
    431,470.37/595,429.76 = 240,479.66/x
  3. Step 3: Cross multiply
    431,470.37x = 595,429.76 × 240,479.66
  4. Step 4: Simplify right side
    431,470.37x = 143,188,744,082.77
  5. Step 5: Solve for x
    x = 143,188,744,082.77/431,470.37
  6. Step 6: Final answer
    x = 331,862.29

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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.