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Finding the Third Proportional to 220,386.38 and 327,339.56

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Solution

The third proportional to 220,386.38 and 327,339.56 is: 486,196.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,386.38 : 327,339.56 = 327,339.56 : x
  2. Step 2: Convert to fraction form
    220,386.38/327,339.56 = 327,339.56/x
  3. Step 3: Cross multiply
    220,386.38x = 327,339.56 × 327,339.56
  4. Step 4: Simplify right side
    220,386.38x = 107,151,189,177.69
  5. Step 5: Solve for x
    x = 107,151,189,177.69/220,386.38
  6. Step 6: Final answer
    x = 486,196.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.