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Finding the Third Proportional to 531.50 and 734.38

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Solution

The third proportional to 531.50 and 734.38 is: 1,014.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.50 : 734.38 = 734.38 : x
  2. Step 2: Convert to fraction form
    531.50/734.38 = 734.38/x
  3. Step 3: Cross multiply
    531.50x = 734.38 × 734.38
  4. Step 4: Simplify right side
    531.50x = 539,306.64
  5. Step 5: Solve for x
    x = 539,306.64/531.50
  6. Step 6: Final answer
    x = 1,014.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.