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Finding the Fourth Proportional to 695.04, 1,041.92 and 262.24

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Solution

The fourth proportional to 695.04, 1,041.92 and 262.24 is: 393.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.04 : 1,041.92 = 262.24 : x
  2. Step 2: Convert to fraction form
    695.04/1,041.92 = 262.24/x
  3. Step 3: Cross multiply
    695.04x = 1,041.92 × 262.24
  4. Step 4: Simplify right side
    695.04x = 273,233.10
  5. Step 5: Solve for x
    x = 273,233.10/695.04
  6. Step 6: Final answer
    x = 393.12

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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.