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Finding the Fourth Proportional to 403.12, 604.80 and 232

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Solution

The fourth proportional to 403.12, 604.80 and 232 is: 348.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.12 : 604.80 = 232 : x
  2. Step 2: Convert to fraction form
    403.12/604.80 = 232/x
  3. Step 3: Cross multiply
    403.12x = 604.80 × 232
  4. Step 4: Simplify right side
    403.12x = 140,313.60
  5. Step 5: Solve for x
    x = 140,313.60/403.12
  6. Step 6: Final answer
    x = 348.07

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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.