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Finding the Third Proportional to 324.75 and 470.63

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Solution

The third proportional to 324.75 and 470.63 is: 682.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.75 : 470.63 = 470.63 : x
  2. Step 2: Convert to fraction form
    324.75/470.63 = 470.63/x
  3. Step 3: Cross multiply
    324.75x = 470.63 × 470.63
  4. Step 4: Simplify right side
    324.75x = 221,487.89
  5. Step 5: Solve for x
    x = 221,487.89/324.75
  6. Step 6: Final answer
    x = 682.03

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.