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Finding the Fourth Proportional to 3,469,431.86, 4,787,345.26 and 2,018,007.44

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Solution

The fourth proportional to 3,469,431.86, 4,787,345.26 and 2,018,007.44 is: 2,784,576.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469,431.86 : 4,787,345.26 = 2,018,007.44 : x
  2. Step 2: Convert to fraction form
    3,469,431.86/4,787,345.26 = 2,018,007.44/x
  3. Step 3: Cross multiply
    3,469,431.86x = 4,787,345.26 × 2,018,007.44
  4. Step 4: Simplify right side
    3,469,431.86x = 9,660,898,352,528.74
  5. Step 5: Solve for x
    x = 9,660,898,352,528.74/3,469,431.86
  6. Step 6: Final answer
    x = 2,784,576.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.