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Finding the Fourth Proportional to 8,800,796.40, 13,203,527.40 and 3,120,428.40

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Solution

The fourth proportional to 8,800,796.40, 13,203,527.40 and 3,120,428.40 is: 4,681,469.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,800,796.40 : 13,203,527.40 = 3,120,428.40 : x
  2. Step 2: Convert to fraction form
    8,800,796.40/13,203,527.40 = 3,120,428.40/x
  3. Step 3: Cross multiply
    8,800,796.40x = 13,203,527.40 × 3,120,428.40
  4. Step 4: Simplify right side
    8,800,796.40x = 41,200,661,879,138.16
  5. Step 5: Solve for x
    x = 41,200,661,879,138.16/8,800,796.40
  6. Step 6: Final answer
    x = 4,681,469.72

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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.