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Finding the Fourth Proportional to 395.52, 593 and 164.40

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Solution

The fourth proportional to 395.52, 593 and 164.40 is: 246.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.52 : 593 = 164.40 : x
  2. Step 2: Convert to fraction form
    395.52/593 = 164.40/x
  3. Step 3: Cross multiply
    395.52x = 593 × 164.40
  4. Step 4: Simplify right side
    395.52x = 97,489.20
  5. Step 5: Solve for x
    x = 97,489.20/395.52
  6. Step 6: Final answer
    x = 246.48

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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.