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Finding the Fourth Proportional to 483,987.16, 667,874.85 and 269,122.61

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Solution

The fourth proportional to 483,987.16, 667,874.85 and 269,122.61 is: 371,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,987.16 : 667,874.85 = 269,122.61 : x
  2. Step 2: Convert to fraction form
    483,987.16/667,874.85 = 269,122.61/x
  3. Step 3: Cross multiply
    483,987.16x = 667,874.85 × 269,122.61
  4. Step 4: Simplify right side
    483,987.16x = 179,740,222,785.36
  5. Step 5: Solve for x
    x = 179,740,222,785.36/483,987.16
  6. Step 6: Final answer
    x = 371,373.95

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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.