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Finding the Fourth Proportional to 576,441.05, 865,188.90 and 292,327.70

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Solution

The fourth proportional to 576,441.05, 865,188.90 and 292,327.70 is: 438,758.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,441.05 : 865,188.90 = 292,327.70 : x
  2. Step 2: Convert to fraction form
    576,441.05/865,188.90 = 292,327.70/x
  3. Step 3: Cross multiply
    576,441.05x = 865,188.90 × 292,327.70
  4. Step 4: Simplify right side
    576,441.05x = 252,918,676,876.59
  5. Step 5: Solve for x
    x = 252,918,676,876.59/576,441.05
  6. Step 6: Final answer
    x = 438,758.97

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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.