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Finding the Fourth Proportional to 2,786,622, 4,180,635.27 and 792,078

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Solution

The fourth proportional to 2,786,622, 4,180,635.27 and 792,078 is: 1,188,316.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786,622 : 4,180,635.27 = 792,078 : x
  2. Step 2: Convert to fraction form
    2,786,622/4,180,635.27 = 792,078/x
  3. Step 3: Cross multiply
    2,786,622x = 4,180,635.27 × 792,078
  4. Step 4: Simplify right side
    2,786,622x = 3,311,389,223,391.06
  5. Step 5: Solve for x
    x = 3,311,389,223,391.06/2,786,622
  6. Step 6: Final answer
    x = 1,188,316.62

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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.