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Finding the Fourth Proportional to 576,650.98, 865,134.28 and 277,381.90

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Solution

The fourth proportional to 576,650.98, 865,134.28 and 277,381.90 is: 416,148.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,650.98 : 865,134.28 = 277,381.90 : x
  2. Step 2: Convert to fraction form
    576,650.98/865,134.28 = 277,381.90/x
  3. Step 3: Cross multiply
    576,650.98x = 865,134.28 × 277,381.90
  4. Step 4: Simplify right side
    576,650.98x = 239,972,586,015.86
  5. Step 5: Solve for x
    x = 239,972,586,015.86/576,650.98
  6. Step 6: Final answer
    x = 416,148.76

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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.