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Finding the Fourth Proportional to 625,909.37, 863,747.33 and 339,426.14

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Solution

The fourth proportional to 625,909.37, 863,747.33 and 339,426.14 is: 468,403.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,909.37 : 863,747.33 = 339,426.14 : x
  2. Step 2: Convert to fraction form
    625,909.37/863,747.33 = 339,426.14/x
  3. Step 3: Cross multiply
    625,909.37x = 863,747.33 × 339,426.14
  4. Step 4: Simplify right side
    625,909.37x = 293,178,416,141.34
  5. Step 5: Solve for x
    x = 293,178,416,141.34/625,909.37
  6. Step 6: Final answer
    x = 468,403.95

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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.