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Finding the Third Proportional to 324.50 and 468.75

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Solution

The third proportional to 324.50 and 468.75 is: 677.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.50 : 468.75 = 468.75 : x
  2. Step 2: Convert to fraction form
    324.50/468.75 = 468.75/x
  3. Step 3: Cross multiply
    324.50x = 468.75 × 468.75
  4. Step 4: Simplify right side
    324.50x = 219,726.56
  5. Step 5: Solve for x
    x = 219,726.56/324.50
  6. Step 6: Final answer
    x = 677.12

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.