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Finding the Fourth Proportional to 566,380.72, 781,515.84 and 324,616.72

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Solution

The fourth proportional to 566,380.72, 781,515.84 and 324,616.72 is: 447,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,380.72 : 781,515.84 = 324,616.72 : x
  2. Step 2: Convert to fraction form
    566,380.72/781,515.84 = 324,616.72/x
  3. Step 3: Cross multiply
    566,380.72x = 781,515.84 × 324,616.72
  4. Step 4: Simplify right side
    566,380.72x = 253,693,108,608.85
  5. Step 5: Solve for x
    x = 253,693,108,608.85/566,380.72
  6. Step 6: Final answer
    x = 447,919.75

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Double scale
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Similar ratio
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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.