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Finding the Fourth Proportional to 2,943.30, 4,413.24 and 994.44

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Solution

The fourth proportional to 2,943.30, 4,413.24 and 994.44 is: 1,491.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.30 : 4,413.24 = 994.44 : x
  2. Step 2: Convert to fraction form
    2,943.30/4,413.24 = 994.44/x
  3. Step 3: Cross multiply
    2,943.30x = 4,413.24 × 994.44
  4. Step 4: Simplify right side
    2,943.30x = 4,388,702.39
  5. Step 5: Solve for x
    x = 4,388,702.39/2,943.30
  6. Step 6: Final answer
    x = 1,491.08

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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.