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Finding the Fourth Proportional to 367,028.10, 550,542.15 and 260,739.90

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Solution

The fourth proportional to 367,028.10, 550,542.15 and 260,739.90 is: 391,109.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,028.10 : 550,542.15 = 260,739.90 : x
  2. Step 2: Convert to fraction form
    367,028.10/550,542.15 = 260,739.90/x
  3. Step 3: Cross multiply
    367,028.10x = 550,542.15 × 260,739.90
  4. Step 4: Simplify right side
    367,028.10x = 143,548,305,136.79
  5. Step 5: Solve for x
    x = 143,548,305,136.79/367,028.10
  6. Step 6: Final answer
    x = 391,109.85

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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.