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Finding the Fourth Proportional to 959,760, 1,324,468.80 and 557,377.92

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Solution

The fourth proportional to 959,760, 1,324,468.80 and 557,377.92 is: 769,181.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,760 : 1,324,468.80 = 557,377.92 : x
  2. Step 2: Convert to fraction form
    959,760/1,324,468.80 = 557,377.92/x
  3. Step 3: Cross multiply
    959,760x = 1,324,468.80 × 557,377.92
  4. Step 4: Simplify right side
    959,760x = 738,229,664,848.90
  5. Step 5: Solve for x
    x = 738,229,664,848.90/959,760
  6. Step 6: Final answer
    x = 769,181.53

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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.