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Finding the Fourth Proportional to 956.68, 1,435.48 and 827.48

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Solution

The fourth proportional to 956.68, 1,435.48 and 827.48 is: 1,241.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.68 : 1,435.48 = 827.48 : x
  2. Step 2: Convert to fraction form
    956.68/1,435.48 = 827.48/x
  3. Step 3: Cross multiply
    956.68x = 1,435.48 × 827.48
  4. Step 4: Simplify right side
    956.68x = 1,187,830.99
  5. Step 5: Solve for x
    x = 1,187,830.99/956.68
  6. Step 6: Final answer
    x = 1,241.62

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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.