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Finding the Fourth Proportional to 483,998.72, 667,919.04 and 269,136.56

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Solution

The fourth proportional to 483,998.72, 667,919.04 and 269,136.56 is: 371,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,998.72 : 667,919.04 = 269,136.56 : x
  2. Step 2: Convert to fraction form
    483,998.72/667,919.04 = 269,136.56/x
  3. Step 3: Cross multiply
    483,998.72x = 667,919.04 × 269,136.56
  4. Step 4: Simplify right side
    483,998.72x = 179,761,432,784.10
  5. Step 5: Solve for x
    x = 179,761,432,784.10/483,998.72
  6. Step 6: Final answer
    x = 371,408.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.