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Finding the Fourth Proportional to 1,339.96, 1,850.70 and 1,184.44

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Solution

The fourth proportional to 1,339.96, 1,850.70 and 1,184.44 is: 1,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.96 : 1,850.70 = 1,184.44 : x
  2. Step 2: Convert to fraction form
    1,339.96/1,850.70 = 1,184.44/x
  3. Step 3: Cross multiply
    1,339.96x = 1,850.70 × 1,184.44
  4. Step 4: Simplify right side
    1,339.96x = 2,192,043.11
  5. Step 5: Solve for x
    x = 2,192,043.11/1,339.96
  6. Step 6: Final answer
    x = 1,635.90

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1.5x scale

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.