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Finding the Third Proportional to 361.75 and 783

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Solution

The third proportional to 361.75 and 783 is: 1,694.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.75 : 783 = 783 : x
  2. Step 2: Convert to fraction form
    361.75/783 = 783/x
  3. Step 3: Cross multiply
    361.75x = 783 × 783
  4. Step 4: Simplify right side
    361.75x = 613,089
  5. Step 5: Solve for x
    x = 613,089/361.75
  6. Step 6: Final answer
    x = 1,694.79

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.