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Finding the Third Proportional to 475.50 and 754.50

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Solution

The third proportional to 475.50 and 754.50 is: 1,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.50 : 754.50 = 754.50 : x
  2. Step 2: Convert to fraction form
    475.50/754.50 = 754.50/x
  3. Step 3: Cross multiply
    475.50x = 754.50 × 754.50
  4. Step 4: Simplify right side
    475.50x = 569,270.25
  5. Step 5: Solve for x
    x = 569,270.25/475.50
  6. Step 6: Final answer
    x = 1,197.20

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.