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Finding the Fourth Proportional to 956.92, 1,435.14 and 263.55

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Solution

The fourth proportional to 956.92, 1,435.14 and 263.55 is: 395.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.92 : 1,435.14 = 263.55 : x
  2. Step 2: Convert to fraction form
    956.92/1,435.14 = 263.55/x
  3. Step 3: Cross multiply
    956.92x = 1,435.14 × 263.55
  4. Step 4: Simplify right side
    956.92x = 378,235.39
  5. Step 5: Solve for x
    x = 378,235.39/956.92
  6. Step 6: Final answer
    x = 395.26

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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.