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Finding the Third Proportional to 354.94 and 550.97

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Solution

The third proportional to 354.94 and 550.97 is: 855.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.94 : 550.97 = 550.97 : x
  2. Step 2: Convert to fraction form
    354.94/550.97 = 550.97/x
  3. Step 3: Cross multiply
    354.94x = 550.97 × 550.97
  4. Step 4: Simplify right side
    354.94x = 303,566.56
  5. Step 5: Solve for x
    x = 303,566.56/354.94
  6. Step 6: Final answer
    x = 855.27

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.