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Finding the Third Proportional to 694.55 and 901.97

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Solution

The third proportional to 694.55 and 901.97 is: 1,171.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.55 : 901.97 = 901.97 : x
  2. Step 2: Convert to fraction form
    694.55/901.97 = 901.97/x
  3. Step 3: Cross multiply
    694.55x = 901.97 × 901.97
  4. Step 4: Simplify right side
    694.55x = 813,547.63
  5. Step 5: Solve for x
    x = 813,547.63/694.55
  6. Step 6: Final answer
    x = 1,171.34

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.