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Finding the Fourth Proportional to 854.56, 1,176.92 and 794.08

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Solution

The fourth proportional to 854.56, 1,176.92 and 794.08 is: 1,093.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    854.56 : 1,176.92 = 794.08 : x
  2. Step 2: Convert to fraction form
    854.56/1,176.92 = 794.08/x
  3. Step 3: Cross multiply
    854.56x = 1,176.92 × 794.08
  4. Step 4: Simplify right side
    854.56x = 934,568.63
  5. Step 5: Solve for x
    x = 934,568.63/854.56
  6. Step 6: Final answer
    x = 1,093.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.