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Finding the Fourth Proportional to 2,455.26, 3,682.86 and 994.40

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Solution

The fourth proportional to 2,455.26, 3,682.86 and 994.40 is: 1,491.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.26 : 3,682.86 = 994.40 : x
  2. Step 2: Convert to fraction form
    2,455.26/3,682.86 = 994.40/x
  3. Step 3: Cross multiply
    2,455.26x = 3,682.86 × 994.40
  4. Step 4: Simplify right side
    2,455.26x = 3,662,235.98
  5. Step 5: Solve for x
    x = 3,662,235.98/2,455.26
  6. Step 6: Final answer
    x = 1,491.59

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1.5x scale

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.