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Finding the Third Proportional to 217,336 and 327,382

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Solution

The third proportional to 217,336 and 327,382 is: 493,148.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,336 : 327,382 = 327,382 : x
  2. Step 2: Convert to fraction form
    217,336/327,382 = 327,382/x
  3. Step 3: Cross multiply
    217,336x = 327,382 × 327,382
  4. Step 4: Simplify right side
    217,336x = 107,178,973,924
  5. Step 5: Solve for x
    x = 107,178,973,924/217,336
  6. Step 6: Final answer
    x = 493,148.74

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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.