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Finding the Third Proportional to 254.06 and 392.44

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Solution

The third proportional to 254.06 and 392.44 is: 606.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.06 : 392.44 = 392.44 : x
  2. Step 2: Convert to fraction form
    254.06/392.44 = 392.44/x
  3. Step 3: Cross multiply
    254.06x = 392.44 × 392.44
  4. Step 4: Simplify right side
    254.06x = 154,007.19
  5. Step 5: Solve for x
    x = 154,007.19/254.06
  6. Step 6: Final answer
    x = 606.18

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.