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Finding the Third Proportional to 468.38 and 674.63

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Solution

The third proportional to 468.38 and 674.63 is: 971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.38 : 674.63 = 674.63 : x
  2. Step 2: Convert to fraction form
    468.38/674.63 = 674.63/x
  3. Step 3: Cross multiply
    468.38x = 674.63 × 674.63
  4. Step 4: Simplify right side
    468.38x = 455,118.89
  5. Step 5: Solve for x
    x = 455,118.89/468.38
  6. Step 6: Final answer
    x = 971.70

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.