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Finding the Third Proportional to 528.88 and 793.69

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Solution

The third proportional to 528.88 and 793.69 is: 1,191.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.88 : 793.69 = 793.69 : x
  2. Step 2: Convert to fraction form
    528.88/793.69 = 793.69/x
  3. Step 3: Cross multiply
    528.88x = 793.69 × 793.69
  4. Step 4: Simplify right side
    528.88x = 629,939.85
  5. Step 5: Solve for x
    x = 629,939.85/528.88
  6. Step 6: Final answer
    x = 1,191.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.