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Finding the Fourth Proportional to 472,458.10, 708,687.15 and 283,501.30

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Solution

The fourth proportional to 472,458.10, 708,687.15 and 283,501.30 is: 425,251.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,458.10 : 708,687.15 = 283,501.30 : x
  2. Step 2: Convert to fraction form
    472,458.10/708,687.15 = 283,501.30/x
  3. Step 3: Cross multiply
    472,458.10x = 708,687.15 × 283,501.30
  4. Step 4: Simplify right side
    472,458.10x = 200,913,728,318.30
  5. Step 5: Solve for x
    x = 200,913,728,318.30/472,458.10
  6. Step 6: Final answer
    x = 425,251.95

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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.