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Finding the Fourth Proportional to 587,412.30, 880,081.65 and 481,658.70

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Solution

The fourth proportional to 587,412.30, 880,081.65 and 481,658.70 is: 721,637.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,412.30 : 880,081.65 = 481,658.70 : x
  2. Step 2: Convert to fraction form
    587,412.30/880,081.65 = 481,658.70/x
  3. Step 3: Cross multiply
    587,412.30x = 880,081.65 × 481,658.70
  4. Step 4: Simplify right side
    587,412.30x = 423,898,983,432.86
  5. Step 5: Solve for x
    x = 423,898,983,432.86/587,412.30
  6. Step 6: Final answer
    x = 721,637.91

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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.