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Finding the Fourth Proportional to 432.24, 596.48 and 235.74

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Solution

The fourth proportional to 432.24, 596.48 and 235.74 is: 325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.24 : 596.48 = 235.74 : x
  2. Step 2: Convert to fraction form
    432.24/596.48 = 235.74/x
  3. Step 3: Cross multiply
    432.24x = 596.48 × 235.74
  4. Step 4: Simplify right side
    432.24x = 140,614.20
  5. Step 5: Solve for x
    x = 140,614.20/432.24
  6. Step 6: Final answer
    x = 325.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.