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Finding the Third Proportional to 334.97 and 479.25

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Solution

The third proportional to 334.97 and 479.25 is: 685.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.97 : 479.25 = 479.25 : x
  2. Step 2: Convert to fraction form
    334.97/479.25 = 479.25/x
  3. Step 3: Cross multiply
    334.97x = 479.25 × 479.25
  4. Step 4: Simplify right side
    334.97x = 229,680.56
  5. Step 5: Solve for x
    x = 229,680.56/334.97
  6. Step 6: Final answer
    x = 685.68

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.