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Finding the Third Proportional to 192,915 and 400,614

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Solution

The third proportional to 192,915 and 400,614 is: 831,928.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,915 : 400,614 = 400,614 : x
  2. Step 2: Convert to fraction form
    192,915/400,614 = 400,614/x
  3. Step 3: Cross multiply
    192,915x = 400,614 × 400,614
  4. Step 4: Simplify right side
    192,915x = 160,491,576,996
  5. Step 5: Solve for x
    x = 160,491,576,996/192,915
  6. Step 6: Final answer
    x = 831,928.97

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.