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Finding the Third Proportional to 361.75 and 788.13

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Solution

The third proportional to 361.75 and 788.13 is: 1,717.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.75 : 788.13 = 788.13 : x
  2. Step 2: Convert to fraction form
    361.75/788.13 = 788.13/x
  3. Step 3: Cross multiply
    361.75x = 788.13 × 788.13
  4. Step 4: Simplify right side
    361.75x = 621,141.02
  5. Step 5: Solve for x
    x = 621,141.02/361.75
  6. Step 6: Final answer
    x = 1,717.04

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.