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Finding the Fourth Proportional to 627,800.96, 940,665.96 and 361,784.96

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Solution

The fourth proportional to 627,800.96, 940,665.96 and 361,784.96 is: 542,080.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,800.96 : 940,665.96 = 361,784.96 : x
  2. Step 2: Convert to fraction form
    627,800.96/940,665.96 = 361,784.96/x
  3. Step 3: Cross multiply
    627,800.96x = 940,665.96 × 361,784.96
  4. Step 4: Simplify right side
    627,800.96x = 340,318,796,711.96
  5. Step 5: Solve for x
    x = 340,318,796,711.96/627,800.96
  6. Step 6: Final answer
    x = 542,080.72

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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.