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Finding the Fourth Proportional to 392.67, 589.22 and 176.24

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Solution

The fourth proportional to 392.67, 589.22 and 176.24 is: 264.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.67 : 589.22 = 176.24 : x
  2. Step 2: Convert to fraction form
    392.67/589.22 = 176.24/x
  3. Step 3: Cross multiply
    392.67x = 589.22 × 176.24
  4. Step 4: Simplify right side
    392.67x = 103,844.13
  5. Step 5: Solve for x
    x = 103,844.13/392.67
  6. Step 6: Final answer
    x = 264.46

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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.