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Finding the Fourth Proportional to 1,194.64, 1,794.84 and 682

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Solution

The fourth proportional to 1,194.64, 1,794.84 and 682 is: 1,024.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.64 : 1,794.84 = 682 : x
  2. Step 2: Convert to fraction form
    1,194.64/1,794.84 = 682/x
  3. Step 3: Cross multiply
    1,194.64x = 1,794.84 × 682
  4. Step 4: Simplify right side
    1,194.64x = 1,224,080.88
  5. Step 5: Solve for x
    x = 1,224,080.88/1,194.64
  6. Step 6: Final answer
    x = 1,024.64

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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.