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Finding the Third Proportional to 322.42 and 482.84

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Solution

The third proportional to 322.42 and 482.84 is: 723.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.42 : 482.84 = 482.84 : x
  2. Step 2: Convert to fraction form
    322.42/482.84 = 482.84/x
  3. Step 3: Cross multiply
    322.42x = 482.84 × 482.84
  4. Step 4: Simplify right side
    322.42x = 233,130.54
  5. Step 5: Solve for x
    x = 233,130.54/322.42
  6. Step 6: Final answer
    x = 723.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.