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Finding the Fourth Proportional to 695.76, 1,043.70 and 233.54

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Solution

The fourth proportional to 695.76, 1,043.70 and 233.54 is: 350.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.76 : 1,043.70 = 233.54 : x
  2. Step 2: Convert to fraction form
    695.76/1,043.70 = 233.54/x
  3. Step 3: Cross multiply
    695.76x = 1,043.70 × 233.54
  4. Step 4: Simplify right side
    695.76x = 243,747.77
  5. Step 5: Solve for x
    x = 243,747.77/695.76
  6. Step 6: Final answer
    x = 350.33

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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.