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Finding the Fourth Proportional to 498,120.75, 747,181.14 and 165,696.75

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Solution

The fourth proportional to 498,120.75, 747,181.14 and 165,696.75 is: 248,545.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,120.75 : 747,181.14 = 165,696.75 : x
  2. Step 2: Convert to fraction form
    498,120.75/747,181.14 = 165,696.75/x
  3. Step 3: Cross multiply
    498,120.75x = 747,181.14 × 165,696.75
  4. Step 4: Simplify right side
    498,120.75x = 123,805,486,559.30
  5. Step 5: Solve for x
    x = 123,805,486,559.30/498,120.75
  6. Step 6: Final answer
    x = 248,545.13

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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.