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Finding the Fourth Proportional to 578,990.62, 868,452.99 and 174,174.22

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Solution

The fourth proportional to 578,990.62, 868,452.99 and 174,174.22 is: 261,251.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,990.62 : 868,452.99 = 174,174.22 : x
  2. Step 2: Convert to fraction form
    578,990.62/868,452.99 = 174,174.22/x
  3. Step 3: Cross multiply
    578,990.62x = 868,452.99 × 174,174.22
  4. Step 4: Simplify right side
    578,990.62x = 151,262,122,139.92
  5. Step 5: Solve for x
    x = 151,262,122,139.92/578,990.62
  6. Step 6: Final answer
    x = 261,251.42

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Double scale
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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.