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Finding the Fourth Proportional to 920,286.64, 1,269,800.34 and 580,558

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Solution

The fourth proportional to 920,286.64, 1,269,800.34 and 580,558 is: 801,046.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,286.64 : 1,269,800.34 = 580,558 : x
  2. Step 2: Convert to fraction form
    920,286.64/1,269,800.34 = 580,558/x
  3. Step 3: Cross multiply
    920,286.64x = 1,269,800.34 × 580,558
  4. Step 4: Simplify right side
    920,286.64x = 737,192,745,789.72
  5. Step 5: Solve for x
    x = 737,192,745,789.72/920,286.64
  6. Step 6: Final answer
    x = 801,046.88

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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.