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Finding the Third Proportional to 361.59 and 788.63

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Solution

The third proportional to 361.59 and 788.63 is: 1,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.59 : 788.63 = 788.63 : x
  2. Step 2: Convert to fraction form
    361.59/788.63 = 788.63/x
  3. Step 3: Cross multiply
    361.59x = 788.63 × 788.63
  4. Step 4: Simplify right side
    361.59x = 621,929.39
  5. Step 5: Solve for x
    x = 621,929.39/361.59
  6. Step 6: Final answer
    x = 1,719.97

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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.