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Finding the Fourth Proportional to 3,866,467.20, 5,793,998.40 and 2,803,747.20

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Solution

The fourth proportional to 3,866,467.20, 5,793,998.40 and 2,803,747.20 is: 4,201,485.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866,467.20 : 5,793,998.40 = 2,803,747.20 : x
  2. Step 2: Convert to fraction form
    3,866,467.20/5,793,998.40 = 2,803,747.20/x
  3. Step 3: Cross multiply
    3,866,467.20x = 5,793,998.40 × 2,803,747.20
  4. Step 4: Simplify right side
    3,866,467.20x = 16,244,906,790,804.48
  5. Step 5: Solve for x
    x = 16,244,906,790,804.48/3,866,467.20
  6. Step 6: Final answer
    x = 4,201,485.74

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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.