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Finding the Fourth Proportional to 492,098.20, 738,147.30 and 159,674.20

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Solution

The fourth proportional to 492,098.20, 738,147.30 and 159,674.20 is: 239,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,098.20 : 738,147.30 = 159,674.20 : x
  2. Step 2: Convert to fraction form
    492,098.20/738,147.30 = 159,674.20/x
  3. Step 3: Cross multiply
    492,098.20x = 738,147.30 × 159,674.20
  4. Step 4: Simplify right side
    492,098.20x = 117,863,079,609.66
  5. Step 5: Solve for x
    x = 117,863,079,609.66/492,098.20
  6. Step 6: Final answer
    x = 239,511.30

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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.