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Finding the Third Proportional to 384.47 and 701.44

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Solution

The third proportional to 384.47 and 701.44 is: 1,279.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.47 : 701.44 = 701.44 : x
  2. Step 2: Convert to fraction form
    384.47/701.44 = 701.44/x
  3. Step 3: Cross multiply
    384.47x = 701.44 × 701.44
  4. Step 4: Simplify right side
    384.47x = 492,014.57
  5. Step 5: Solve for x
    x = 492,014.57/384.47
  6. Step 6: Final answer
    x = 1,279.73

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Why These Related Problems?

These problems maintain the same ratio (1.82) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.