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Finding the Fourth Proportional to 2,993,569.80, 4,489,370.55 and 1,100,065.20

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Solution

The fourth proportional to 2,993,569.80, 4,489,370.55 and 1,100,065.20 is: 1,649,736.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993,569.80 : 4,489,370.55 = 1,100,065.20 : x
  2. Step 2: Convert to fraction form
    2,993,569.80/4,489,370.55 = 1,100,065.20/x
  3. Step 3: Cross multiply
    2,993,569.80x = 4,489,370.55 × 1,100,065.20
  4. Step 4: Simplify right side
    2,993,569.80x = 4,938,600,311,959.86
  5. Step 5: Solve for x
    x = 4,938,600,311,959.86/2,993,569.80
  6. Step 6: Final answer
    x = 1,649,736.15

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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.