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Finding the Third Proportional to 317.63 and 462.94

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Solution

The third proportional to 317.63 and 462.94 is: 674.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.63 : 462.94 = 462.94 : x
  2. Step 2: Convert to fraction form
    317.63/462.94 = 462.94/x
  3. Step 3: Cross multiply
    317.63x = 462.94 × 462.94
  4. Step 4: Simplify right side
    317.63x = 214,311.13
  5. Step 5: Solve for x
    x = 214,311.13/317.63
  6. Step 6: Final answer
    x = 674.73

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.