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Finding the Fourth Proportional to 854.32, 1,179.60 and 592.96

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Solution

The fourth proportional to 854.32, 1,179.60 and 592.96 is: 818.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    854.32 : 1,179.60 = 592.96 : x
  2. Step 2: Convert to fraction form
    854.32/1,179.60 = 592.96/x
  3. Step 3: Cross multiply
    854.32x = 1,179.60 × 592.96
  4. Step 4: Simplify right side
    854.32x = 699,455.62
  5. Step 5: Solve for x
    x = 699,455.62/854.32
  6. Step 6: Final answer
    x = 818.73

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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.