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Finding the Fourth Proportional to 483,855.57, 667,682.87 and 268,982.55

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Solution

The fourth proportional to 483,855.57, 667,682.87 and 268,982.55 is: 371,174.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,855.57 : 667,682.87 = 268,982.55 : x
  2. Step 2: Convert to fraction form
    483,855.57/667,682.87 = 268,982.55/x
  3. Step 3: Cross multiply
    483,855.57x = 667,682.87 × 268,982.55
  4. Step 4: Simplify right side
    483,855.57x = 179,595,039,619.01
  5. Step 5: Solve for x
    x = 179,595,039,619.01/483,855.57
  6. Step 6: Final answer
    x = 371,174.89

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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.