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Finding the Fourth Proportional to 6,645,448.98, 9,969,854.73 and 1,853,138.76

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Solution

The fourth proportional to 6,645,448.98, 9,969,854.73 and 1,853,138.76 is: 2,780,176.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645,448.98 : 9,969,854.73 = 1,853,138.76 : x
  2. Step 2: Convert to fraction form
    6,645,448.98/9,969,854.73 = 1,853,138.76/x
  3. Step 3: Cross multiply
    6,645,448.98x = 9,969,854.73 × 1,853,138.76
  4. Step 4: Simplify right side
    6,645,448.98x = 18,475,524,231,732.34
  5. Step 5: Solve for x
    x = 18,475,524,231,732.34/6,645,448.98
  6. Step 6: Final answer
    x = 2,780,176.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.