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Finding the Fourth Proportional to 432, 596 and 301.28

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Solution

The fourth proportional to 432, 596 and 301.28 is: 415.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    432 : 596 = 301.28 : x
  2. Step 2: Convert to fraction form
    432/596 = 301.28/x
  3. Step 3: Cross multiply
    432x = 596 × 301.28
  4. Step 4: Simplify right side
    432x = 179,562.88
  5. Step 5: Solve for x
    x = 179,562.88/432
  6. Step 6: Final answer
    x = 415.65

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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.