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Finding the Fourth Proportional to 534,449.80, 801,674.70 and 486,238.60

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Solution

The fourth proportional to 534,449.80, 801,674.70 and 486,238.60 is: 729,357.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,449.80 : 801,674.70 = 486,238.60 : x
  2. Step 2: Convert to fraction form
    534,449.80/801,674.70 = 486,238.60/x
  3. Step 3: Cross multiply
    534,449.80x = 801,674.70 × 486,238.60
  4. Step 4: Simplify right side
    534,449.80x = 389,805,183,783.42
  5. Step 5: Solve for x
    x = 389,805,183,783.42/534,449.80
  6. Step 6: Final answer
    x = 729,357.90

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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.