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Finding the Fourth Proportional to 6,394,321.90, 8,828,074.65 and 4,161,227.32

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Solution

The fourth proportional to 6,394,321.90, 8,828,074.65 and 4,161,227.32 is: 5,745,038.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,394,321.90 : 8,828,074.65 = 4,161,227.32 : x
  2. Step 2: Convert to fraction form
    6,394,321.90/8,828,074.65 = 4,161,227.32/x
  3. Step 3: Cross multiply
    6,394,321.90x = 8,828,074.65 × 4,161,227.32
  4. Step 4: Simplify right side
    6,394,321.90x = 36,735,625,416,579.44
  5. Step 5: Solve for x
    x = 36,735,625,416,579.44/6,394,321.90
  6. Step 6: Final answer
    x = 5,745,038.49

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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.