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Finding the Third Proportional to 148,774 and 327,728

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Solution

The third proportional to 148,774 and 327,728 is: 721,938.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,774 : 327,728 = 327,728 : x
  2. Step 2: Convert to fraction form
    148,774/327,728 = 327,728/x
  3. Step 3: Cross multiply
    148,774x = 327,728 × 327,728
  4. Step 4: Simplify right side
    148,774x = 107,405,641,984
  5. Step 5: Solve for x
    x = 107,405,641,984/148,774
  6. Step 6: Final answer
    x = 721,938.26

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.