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Finding the Fourth Proportional to 695.04, 1,042.56 and 232.81

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Solution

The fourth proportional to 695.04, 1,042.56 and 232.81 is: 349.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.04 : 1,042.56 = 232.81 : x
  2. Step 2: Convert to fraction form
    695.04/1,042.56 = 232.81/x
  3. Step 3: Cross multiply
    695.04x = 1,042.56 × 232.81
  4. Step 4: Simplify right side
    695.04x = 242,715.79
  5. Step 5: Solve for x
    x = 242,715.79/695.04
  6. Step 6: Final answer
    x = 349.21

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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.