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Finding the Fourth Proportional to 468,843.39, 647,002.89 and 253,988.73

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Solution

The fourth proportional to 468,843.39, 647,002.89 and 253,988.73 is: 350,503.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,843.39 : 647,002.89 = 253,988.73 : x
  2. Step 2: Convert to fraction form
    468,843.39/647,002.89 = 253,988.73/x
  3. Step 3: Cross multiply
    468,843.39x = 647,002.89 × 253,988.73
  4. Step 4: Simplify right side
    468,843.39x = 164,331,442,337.43
  5. Step 5: Solve for x
    x = 164,331,442,337.43/468,843.39
  6. Step 6: Final answer
    x = 350,503.91

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1.5x scale

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.