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Finding the Third Proportional to 365.25 and 558.75

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Solution

The third proportional to 365.25 and 558.75 is: 854.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.25 : 558.75 = 558.75 : x
  2. Step 2: Convert to fraction form
    365.25/558.75 = 558.75/x
  3. Step 3: Cross multiply
    365.25x = 558.75 × 558.75
  4. Step 4: Simplify right side
    365.25x = 312,201.56
  5. Step 5: Solve for x
    x = 312,201.56/365.25
  6. Step 6: Final answer
    x = 854.76

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.