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Finding the Fourth Proportional to 625,311.39, 937,967.45 and 439,153.95

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Solution

The fourth proportional to 625,311.39, 937,967.45 and 439,153.95 is: 658,731.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,311.39 : 937,967.45 = 439,153.95 : x
  2. Step 2: Convert to fraction form
    625,311.39/937,967.45 = 439,153.95/x
  3. Step 3: Cross multiply
    625,311.39x = 937,967.45 × 439,153.95
  4. Step 4: Simplify right side
    625,311.39x = 411,912,108,443.16
  5. Step 5: Solve for x
    x = 411,912,108,443.16/625,311.39
  6. Step 6: Final answer
    x = 658,731.18

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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.