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Finding the Fourth Proportional to 662,704.20, 993,278.70 and 283,624.20

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Solution

The fourth proportional to 662,704.20, 993,278.70 and 283,624.20 is: 425,103.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,704.20 : 993,278.70 = 283,624.20 : x
  2. Step 2: Convert to fraction form
    662,704.20/993,278.70 = 283,624.20/x
  3. Step 3: Cross multiply
    662,704.20x = 993,278.70 × 283,624.20
  4. Step 4: Simplify right side
    662,704.20x = 281,717,876,664.54
  5. Step 5: Solve for x
    x = 281,717,876,664.54/662,704.20
  6. Step 6: Final answer
    x = 425,103.50

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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.