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Finding the Fourth Proportional to 465,900.54, 642,934.28 and 259,167.92

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Solution

The fourth proportional to 465,900.54, 642,934.28 and 259,167.92 is: 357,647.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,900.54 : 642,934.28 = 259,167.92 : x
  2. Step 2: Convert to fraction form
    465,900.54/642,934.28 = 259,167.92/x
  3. Step 3: Cross multiply
    465,900.54x = 642,934.28 × 259,167.92
  4. Step 4: Simplify right side
    465,900.54x = 166,627,940,044.30
  5. Step 5: Solve for x
    x = 166,627,940,044.30/465,900.54
  6. Step 6: Final answer
    x = 357,647.02

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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.