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Finding the Fourth Proportional to 465,195.88, 641,968.50 and 261,218.44

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Solution

The fourth proportional to 465,195.88, 641,968.50 and 261,218.44 is: 360,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,195.88 : 641,968.50 = 261,218.44 : x
  2. Step 2: Convert to fraction form
    465,195.88/641,968.50 = 261,218.44/x
  3. Step 3: Cross multiply
    465,195.88x = 641,968.50 × 261,218.44
  4. Step 4: Simplify right side
    465,195.88x = 167,694,010,099.14
  5. Step 5: Solve for x
    x = 167,694,010,099.14/465,195.88
  6. Step 6: Final answer
    x = 360,480.43

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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.