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Finding the Fourth Proportional to 534,454.80, 801,682.20 and 486,243.60

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Solution

The fourth proportional to 534,454.80, 801,682.20 and 486,243.60 is: 729,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,454.80 : 801,682.20 = 486,243.60 : x
  2. Step 2: Convert to fraction form
    534,454.80/801,682.20 = 486,243.60/x
  3. Step 3: Cross multiply
    534,454.80x = 801,682.20 × 486,243.60
  4. Step 4: Simplify right side
    534,454.80x = 389,812,838,983.92
  5. Step 5: Solve for x
    x = 389,812,838,983.92/534,454.80
  6. Step 6: Final answer
    x = 729,365.40

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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.