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Finding the Fourth Proportional to 625,515.24, 863,212.56 and 339,035.04

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Solution

The fourth proportional to 625,515.24, 863,212.56 and 339,035.04 is: 467,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,515.24 : 863,212.56 = 339,035.04 : x
  2. Step 2: Convert to fraction form
    625,515.24/863,212.56 = 339,035.04/x
  3. Step 3: Cross multiply
    625,515.24x = 863,212.56 × 339,035.04
  4. Step 4: Simplify right side
    625,515.24x = 292,659,304,808.10
  5. Step 5: Solve for x
    x = 292,659,304,808.10/625,515.24
  6. Step 6: Final answer
    x = 467,869.18

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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.