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Finding the Fourth Proportional to 695.02, 1,042.65 and 232.75

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Solution

The fourth proportional to 695.02, 1,042.65 and 232.75 is: 349.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.02 : 1,042.65 = 232.75 : x
  2. Step 2: Convert to fraction form
    695.02/1,042.65 = 232.75/x
  3. Step 3: Cross multiply
    695.02x = 1,042.65 × 232.75
  4. Step 4: Simplify right side
    695.02x = 242,676.79
  5. Step 5: Solve for x
    x = 242,676.79/695.02
  6. Step 6: Final answer
    x = 349.17

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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.