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Finding the Fourth Proportional to 587,867.87, 880,306.10 and 387,580.59

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Solution

The fourth proportional to 587,867.87, 880,306.10 and 387,580.59 is: 580,384.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,867.87 : 880,306.10 = 387,580.59 : x
  2. Step 2: Convert to fraction form
    587,867.87/880,306.10 = 387,580.59/x
  3. Step 3: Cross multiply
    587,867.87x = 880,306.10 × 387,580.59
  4. Step 4: Simplify right side
    587,867.87x = 341,189,557,618.60
  5. Step 5: Solve for x
    x = 341,189,557,618.60/587,867.87
  6. Step 6: Final answer
    x = 580,384.77

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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.