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Finding the Fourth Proportional to 417, 575.50 and 233

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Solution

The fourth proportional to 417, 575.50 and 233 is: 321.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    417 : 575.50 = 233 : x
  2. Step 2: Convert to fraction form
    417/575.50 = 233/x
  3. Step 3: Cross multiply
    417x = 575.50 × 233
  4. Step 4: Simplify right side
    417x = 134,091.50
  5. Step 5: Solve for x
    x = 134,091.50/417
  6. Step 6: Final answer
    x = 321.56

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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.