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Finding the Third Proportional to 609.38 and 945.38

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Solution

The third proportional to 609.38 and 945.38 is: 1,466.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.38 : 945.38 = 945.38 : x
  2. Step 2: Convert to fraction form
    609.38/945.38 = 945.38/x
  3. Step 3: Cross multiply
    609.38x = 945.38 × 945.38
  4. Step 4: Simplify right side
    609.38x = 893,733.89
  5. Step 5: Solve for x
    x = 893,733.89/609.38
  6. Step 6: Final answer
    x = 1,466.64

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.