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Finding the Fourth Proportional to 534,785.40, 802,178.10 and 219,468.60

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Solution

The fourth proportional to 534,785.40, 802,178.10 and 219,468.60 is: 329,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,785.40 : 802,178.10 = 219,468.60 : x
  2. Step 2: Convert to fraction form
    534,785.40/802,178.10 = 219,468.60/x
  3. Step 3: Cross multiply
    534,785.40x = 802,178.10 × 219,468.60
  4. Step 4: Simplify right side
    534,785.40x = 176,052,904,557.66
  5. Step 5: Solve for x
    x = 176,052,904,557.66/534,785.40
  6. Step 6: Final answer
    x = 329,202.90

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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.