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Finding the Third Proportional to 334.13 and 682.88

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Solution

The third proportional to 334.13 and 682.88 is: 1,395.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.13 : 682.88 = 682.88 : x
  2. Step 2: Convert to fraction form
    334.13/682.88 = 682.88/x
  3. Step 3: Cross multiply
    334.13x = 682.88 × 682.88
  4. Step 4: Simplify right side
    334.13x = 466,318.27
  5. Step 5: Solve for x
    x = 466,318.27/334.13
  6. Step 6: Final answer
    x = 1,395.64

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.