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Finding the Fourth Proportional to 2,226.33, 3,339.50 and 993.47

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Solution

The fourth proportional to 2,226.33, 3,339.50 and 993.47 is: 1,490.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.33 : 3,339.50 = 993.47 : x
  2. Step 2: Convert to fraction form
    2,226.33/3,339.50 = 993.47/x
  3. Step 3: Cross multiply
    2,226.33x = 3,339.50 × 993.47
  4. Step 4: Simplify right side
    2,226.33x = 3,317,671.40
  5. Step 5: Solve for x
    x = 3,317,671.40/2,226.33
  6. Step 6: Final answer
    x = 1,490.20

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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.