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Finding the Fourth Proportional to 483,140.20, 724,710.30 and 441,805.90

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Solution

The fourth proportional to 483,140.20, 724,710.30 and 441,805.90 is: 662,708.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,140.20 : 724,710.30 = 441,805.90 : x
  2. Step 2: Convert to fraction form
    483,140.20/724,710.30 = 441,805.90/x
  3. Step 3: Cross multiply
    483,140.20x = 724,710.30 × 441,805.90
  4. Step 4: Simplify right side
    483,140.20x = 320,181,286,330.77
  5. Step 5: Solve for x
    x = 320,181,286,330.77/483,140.20
  6. Step 6: Final answer
    x = 662,708.85

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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.