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Finding the Fourth Proportional to 322,906.20, 484,359.30 and 283,507.80

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Solution

The fourth proportional to 322,906.20, 484,359.30 and 283,507.80 is: 425,261.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,906.20 : 484,359.30 = 283,507.80 : x
  2. Step 2: Convert to fraction form
    322,906.20/484,359.30 = 283,507.80/x
  3. Step 3: Cross multiply
    322,906.20x = 484,359.30 × 283,507.80
  4. Step 4: Simplify right side
    322,906.20x = 137,319,639,552.54
  5. Step 5: Solve for x
    x = 137,319,639,552.54/322,906.20
  6. Step 6: Final answer
    x = 425,261.70

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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.