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Finding the Third Proportional to 215,791.88 and 326,685.94

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Solution

The third proportional to 215,791.88 and 326,685.94 is: 494,567.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,791.88 : 326,685.94 = 326,685.94 : x
  2. Step 2: Convert to fraction form
    215,791.88/326,685.94 = 326,685.94/x
  3. Step 3: Cross multiply
    215,791.88x = 326,685.94 × 326,685.94
  4. Step 4: Simplify right side
    215,791.88x = 106,723,701,760.25
  5. Step 5: Solve for x
    x = 106,723,701,760.25/215,791.88
  6. Step 6: Final answer
    x = 494,567.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.