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Finding the Fourth Proportional to 483,994.41, 667,912.86 and 269,129.88

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Solution

The fourth proportional to 483,994.41, 667,912.86 and 269,129.88 is: 371,399.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,994.41 : 667,912.86 = 269,129.88 : x
  2. Step 2: Convert to fraction form
    483,994.41/667,912.86 = 269,129.88/x
  3. Step 3: Cross multiply
    483,994.41x = 667,912.86 × 269,129.88
  4. Step 4: Simplify right side
    483,994.41x = 179,755,307,862.26
  5. Step 5: Solve for x
    x = 179,755,307,862.26/483,994.41
  6. Step 6: Final answer
    x = 371,399.55

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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.