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Finding the Fourth Proportional to 367,826.31, 551,735.91 and 217,958.70

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Solution

The fourth proportional to 367,826.31, 551,735.91 and 217,958.70 is: 326,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,826.31 : 551,735.91 = 217,958.70 : x
  2. Step 2: Convert to fraction form
    367,826.31/551,735.91 = 217,958.70/x
  3. Step 3: Cross multiply
    367,826.31x = 551,735.91 × 217,958.70
  4. Step 4: Simplify right side
    367,826.31x = 120,255,641,686.92
  5. Step 5: Solve for x
    x = 120,255,641,686.92/367,826.31
  6. Step 6: Final answer
    x = 326,935.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.