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Finding the Fourth Proportional to 6,394,326.40, 8,828,080.86 and 4,161,231.82

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Solution

The fourth proportional to 6,394,326.40, 8,828,080.86 and 4,161,231.82 is: 5,745,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,394,326.40 : 8,828,080.86 = 4,161,231.82 : x
  2. Step 2: Convert to fraction form
    6,394,326.40/8,828,080.86 = 4,161,231.82/x
  3. Step 3: Cross multiply
    6,394,326.40x = 8,828,080.86 × 4,161,231.82
  4. Step 4: Simplify right side
    6,394,326.40x = 36,735,690,984,164.96
  5. Step 5: Solve for x
    x = 36,735,690,984,164.96/6,394,326.40
  6. Step 6: Final answer
    x = 5,745,044.70

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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.