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Finding the Fourth Proportional to 452,972.70, 679,459.05 and 403,983.90

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Solution

The fourth proportional to 452,972.70, 679,459.05 and 403,983.90 is: 605,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,972.70 : 679,459.05 = 403,983.90 : x
  2. Step 2: Convert to fraction form
    452,972.70/679,459.05 = 403,983.90/x
  3. Step 3: Cross multiply
    452,972.70x = 679,459.05 × 403,983.90
  4. Step 4: Simplify right side
    452,972.70x = 274,490,516,909.30
  5. Step 5: Solve for x
    x = 274,490,516,909.30/452,972.70
  6. Step 6: Final answer
    x = 605,975.85

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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.