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Finding the Fourth Proportional to 647,553.92, 894,188.40 and 406,251.32

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Solution

The fourth proportional to 647,553.92, 894,188.40 and 406,251.32 is: 560,980.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,553.92 : 894,188.40 = 406,251.32 : x
  2. Step 2: Convert to fraction form
    647,553.92/894,188.40 = 406,251.32/x
  3. Step 3: Cross multiply
    647,553.92x = 894,188.40 × 406,251.32
  4. Step 4: Simplify right side
    647,553.92x = 363,265,217,828.69
  5. Step 5: Solve for x
    x = 363,265,217,828.69/647,553.92
  6. Step 6: Final answer
    x = 560,980.65

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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.