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Finding the Third Proportional to 590.50 and 868.75

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Solution

The third proportional to 590.50 and 868.75 is: 1,278.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.50 : 868.75 = 868.75 : x
  2. Step 2: Convert to fraction form
    590.50/868.75 = 868.75/x
  3. Step 3: Cross multiply
    590.50x = 868.75 × 868.75
  4. Step 4: Simplify right side
    590.50x = 754,726.56
  5. Step 5: Solve for x
    x = 754,726.56/590.50
  6. Step 6: Final answer
    x = 1,278.11

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.