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Finding the Fourth Proportional to 465,187.52, 641,974.28 and 261,274.37

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Solution

The fourth proportional to 465,187.52, 641,974.28 and 261,274.37 is: 360,567.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,187.52 : 641,974.28 = 261,274.37 : x
  2. Step 2: Convert to fraction form
    465,187.52/641,974.28 = 261,274.37/x
  3. Step 3: Cross multiply
    465,187.52x = 641,974.28 × 261,274.37
  4. Step 4: Simplify right side
    465,187.52x = 167,731,421,046.96
  5. Step 5: Solve for x
    x = 167,731,421,046.96/465,187.52
  6. Step 6: Final answer
    x = 360,567.33

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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.