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Finding the Fourth Proportional to 545,149.20, 817,723.80 and 332,572.80

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Solution

The fourth proportional to 545,149.20, 817,723.80 and 332,572.80 is: 498,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,149.20 : 817,723.80 = 332,572.80 : x
  2. Step 2: Convert to fraction form
    545,149.20/817,723.80 = 332,572.80/x
  3. Step 3: Cross multiply
    545,149.20x = 817,723.80 × 332,572.80
  4. Step 4: Simplify right side
    545,149.20x = 271,952,693,792.64
  5. Step 5: Solve for x
    x = 271,952,693,792.64/545,149.20
  6. Step 6: Final answer
    x = 498,859.20

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.