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Finding the Fourth Proportional to 483,939.98, 667,833.09 and 269,078.16

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Solution

The fourth proportional to 483,939.98, 667,833.09 and 269,078.16 is: 371,325.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,939.98 : 667,833.09 = 269,078.16 : x
  2. Step 2: Convert to fraction form
    483,939.98/667,833.09 = 269,078.16/x
  3. Step 3: Cross multiply
    483,939.98x = 667,833.09 × 269,078.16
  4. Step 4: Simplify right side
    483,939.98x = 179,699,299,044.31
  5. Step 5: Solve for x
    x = 179,699,299,044.31/483,939.98
  6. Step 6: Final answer
    x = 371,325.59

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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.