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Finding the Fourth Proportional to 381,781.85, 526,800.27 and 220,605.62

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Solution

The fourth proportional to 381,781.85, 526,800.27 and 220,605.62 is: 304,401.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,781.85 : 526,800.27 = 220,605.62 : x
  2. Step 2: Convert to fraction form
    381,781.85/526,800.27 = 220,605.62/x
  3. Step 3: Cross multiply
    381,781.85x = 526,800.27 × 220,605.62
  4. Step 4: Simplify right side
    381,781.85x = 116,215,098,372.79
  5. Step 5: Solve for x
    x = 116,215,098,372.79/381,781.85
  6. Step 6: Final answer
    x = 304,401.85

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1.5x scale

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.