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Finding the Fourth Proportional to 1,236.60, 1,854.74 and 467

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Solution

The fourth proportional to 1,236.60, 1,854.74 and 467 is: 700.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.60 : 1,854.74 = 467 : x
  2. Step 2: Convert to fraction form
    1,236.60/1,854.74 = 467/x
  3. Step 3: Cross multiply
    1,236.60x = 1,854.74 × 467
  4. Step 4: Simplify right side
    1,236.60x = 866,163.58
  5. Step 5: Solve for x
    x = 866,163.58/1,236.60
  6. Step 6: Final answer
    x = 700.44

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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.