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Finding the Third Proportional to 364.50 and 605.81

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Solution

The third proportional to 364.50 and 605.81 is: 1,006.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.50 : 605.81 = 605.81 : x
  2. Step 2: Convert to fraction form
    364.50/605.81 = 605.81/x
  3. Step 3: Cross multiply
    364.50x = 605.81 × 605.81
  4. Step 4: Simplify right side
    364.50x = 367,008.79
  5. Step 5: Solve for x
    x = 367,008.79/364.50
  6. Step 6: Final answer
    x = 1,006.88

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.