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Finding the Fourth Proportional to 484,230.60, 726,345.90 and 481,120.20

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Solution

The fourth proportional to 484,230.60, 726,345.90 and 481,120.20 is: 721,680.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,230.60 : 726,345.90 = 481,120.20 : x
  2. Step 2: Convert to fraction form
    484,230.60/726,345.90 = 481,120.20/x
  3. Step 3: Cross multiply
    484,230.60x = 726,345.90 × 481,120.20
  4. Step 4: Simplify right side
    484,230.60x = 349,459,684,677.18
  5. Step 5: Solve for x
    x = 349,459,684,677.18/484,230.60
  6. Step 6: Final answer
    x = 721,680.30

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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.