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Finding the Third Proportional to 324.63 and 613.83

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Solution

The third proportional to 324.63 and 613.83 is: 1,160.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.63 : 613.83 = 613.83 : x
  2. Step 2: Convert to fraction form
    324.63/613.83 = 613.83/x
  3. Step 3: Cross multiply
    324.63x = 613.83 × 613.83
  4. Step 4: Simplify right side
    324.63x = 376,784.97
  5. Step 5: Solve for x
    x = 376,784.97/324.63
  6. Step 6: Final answer
    x = 1,160.65

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Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.