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Finding the Third Proportional to 392.44 and 589.50

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Solution

The third proportional to 392.44 and 589.50 is: 885.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.44 : 589.50 = 589.50 : x
  2. Step 2: Convert to fraction form
    392.44/589.50 = 589.50/x
  3. Step 3: Cross multiply
    392.44x = 589.50 × 589.50
  4. Step 4: Simplify right side
    392.44x = 347,510.25
  5. Step 5: Solve for x
    x = 347,510.25/392.44
  6. Step 6: Final answer
    x = 885.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.