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Finding the Third Proportional to 433.69 and 682.17

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Solution

The third proportional to 433.69 and 682.17 is: 1,073.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    433.69 : 682.17 = 682.17 : x
  2. Step 2: Convert to fraction form
    433.69/682.17 = 682.17/x
  3. Step 3: Cross multiply
    433.69x = 682.17 × 682.17
  4. Step 4: Simplify right side
    433.69x = 465,358.47
  5. Step 5: Solve for x
    x = 465,358.47/433.69
  6. Step 6: Final answer
    x = 1,073.03

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.