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Finding the Third Proportional to 394.13 and 601.88

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Solution

The third proportional to 394.13 and 601.88 is: 919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.13 : 601.88 = 601.88 : x
  2. Step 2: Convert to fraction form
    394.13/601.88 = 601.88/x
  3. Step 3: Cross multiply
    394.13x = 601.88 × 601.88
  4. Step 4: Simplify right side
    394.13x = 362,253.52
  5. Step 5: Solve for x
    x = 362,253.52/394.13
  6. Step 6: Final answer
    x = 919.13

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.