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Finding the Fourth Proportional to 1,594.20, 2,392.02 and 863.64

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Solution

The fourth proportional to 1,594.20, 2,392.02 and 863.64 is: 1,295.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,594.20 : 2,392.02 = 863.64 : x
  2. Step 2: Convert to fraction form
    1,594.20/2,392.02 = 863.64/x
  3. Step 3: Cross multiply
    1,594.20x = 2,392.02 × 863.64
  4. Step 4: Simplify right side
    1,594.20x = 2,065,844.15
  5. Step 5: Solve for x
    x = 2,065,844.15/1,594.20
  6. Step 6: Final answer
    x = 1,295.85

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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.