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Finding the Fourth Proportional to 432.22, 596.47 and 235.74

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Solution

The fourth proportional to 432.22, 596.47 and 235.74 is: 325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.22 : 596.47 = 235.74 : x
  2. Step 2: Convert to fraction form
    432.22/596.47 = 235.74/x
  3. Step 3: Cross multiply
    432.22x = 596.47 × 235.74
  4. Step 4: Simplify right side
    432.22x = 140,611.84
  5. Step 5: Solve for x
    x = 140,611.84/432.22
  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.