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Finding the Third Proportional to 358.38 and 552.94

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Solution

The third proportional to 358.38 and 552.94 is: 853.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.38 : 552.94 = 552.94 : x
  2. Step 2: Convert to fraction form
    358.38/552.94 = 552.94/x
  3. Step 3: Cross multiply
    358.38x = 552.94 × 552.94
  4. Step 4: Simplify right side
    358.38x = 305,739.88
  5. Step 5: Solve for x
    x = 305,739.88/358.38
  6. Step 6: Final answer
    x = 853.13

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.