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Finding the Fourth Proportional to 2,794.34, 4,191.64 and 846.56

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Solution

The fourth proportional to 2,794.34, 4,191.64 and 846.56 is: 1,269.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,794.34 : 4,191.64 = 846.56 : x
  2. Step 2: Convert to fraction form
    2,794.34/4,191.64 = 846.56/x
  3. Step 3: Cross multiply
    2,794.34x = 4,191.64 × 846.56
  4. Step 4: Simplify right side
    2,794.34x = 3,548,474.76
  5. Step 5: Solve for x
    x = 3,548,474.76/2,794.34
  6. Step 6: Final answer
    x = 1,269.88

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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.