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Finding the Third Proportional to 164,304 and 336,393

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Solution

The third proportional to 164,304 and 336,393 is: 688,724.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,304 : 336,393 = 336,393 : x
  2. Step 2: Convert to fraction form
    164,304/336,393 = 336,393/x
  3. Step 3: Cross multiply
    164,304x = 336,393 × 336,393
  4. Step 4: Simplify right side
    164,304x = 113,160,250,449
  5. Step 5: Solve for x
    x = 113,160,250,449/164,304
  6. Step 6: Final answer
    x = 688,724.87

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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.