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Finding the Third Proportional to 322 and 767.88

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Solution

The third proportional to 322 and 767.88 is: 1,831.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    322 : 767.88 = 767.88 : x
  2. Step 2: Convert to fraction form
    322/767.88 = 767.88/x
  3. Step 3: Cross multiply
    322x = 767.88 × 767.88
  4. Step 4: Simplify right side
    322x = 589,632.02
  5. Step 5: Solve for x
    x = 589,632.02/322
  6. Step 6: Final answer
    x = 1,831.16

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.