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Finding the Fourth Proportional to 589, 883.60 and 223.78

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Solution

The fourth proportional to 589, 883.60 and 223.78 is: 335.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    589 : 883.60 = 223.78 : x
  2. Step 2: Convert to fraction form
    589/883.60 = 223.78/x
  3. Step 3: Cross multiply
    589x = 883.60 × 223.78
  4. Step 4: Simplify right side
    589x = 197,732.01
  5. Step 5: Solve for x
    x = 197,732.01/589
  6. Step 6: Final answer
    x = 335.71

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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.