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Finding the Fourth Proportional to 695.58, 1,043.40 and 233.42

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Solution

The fourth proportional to 695.58, 1,043.40 and 233.42 is: 350.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    695.58 : 1,043.40 = 233.42 : x
  2. Step 2: Convert to fraction form
    695.58/1,043.40 = 233.42/x
  3. Step 3: Cross multiply
    695.58x = 1,043.40 × 233.42
  4. Step 4: Simplify right side
    695.58x = 243,550.43
  5. Step 5: Solve for x
    x = 243,550.43/695.58
  6. Step 6: Final answer
    x = 350.14

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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.