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Finding the Fourth Proportional to 695.10, 1,042.02 and 262.14

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Solution

The fourth proportional to 695.10, 1,042.02 and 262.14 is: 392.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.10 : 1,042.02 = 262.14 : x
  2. Step 2: Convert to fraction form
    695.10/1,042.02 = 262.14/x
  3. Step 3: Cross multiply
    695.10x = 1,042.02 × 262.14
  4. Step 4: Simplify right side
    695.10x = 273,155.12
  5. Step 5: Solve for x
    x = 273,155.12/695.10
  6. Step 6: Final answer
    x = 392.97

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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.