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Finding the Third Proportional to 187,831 and 384,301

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Solution

The third proportional to 187,831 and 384,301 is: 786,277.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,831 : 384,301 = 384,301 : x
  2. Step 2: Convert to fraction form
    187,831/384,301 = 384,301/x
  3. Step 3: Cross multiply
    187,831x = 384,301 × 384,301
  4. Step 4: Simplify right side
    187,831x = 147,687,258,601
  5. Step 5: Solve for x
    x = 147,687,258,601/187,831
  6. Step 6: Final answer
    x = 786,277.34

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.