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Finding the Fourth Proportional to 6,843,606.39, 9,443,879.78 and 3,787,638.39

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Solution

The fourth proportional to 6,843,606.39, 9,443,879.78 and 3,787,638.39 is: 5,226,776.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,843,606.39 : 9,443,879.78 = 3,787,638.39 : x
  2. Step 2: Convert to fraction form
    6,843,606.39/9,443,879.78 = 3,787,638.39/x
  3. Step 3: Cross multiply
    6,843,606.39x = 9,443,879.78 × 3,787,638.39
  4. Step 4: Simplify right side
    6,843,606.39x = 35,770,001,586,334.56
  5. Step 5: Solve for x
    x = 35,770,001,586,334.56/6,843,606.39
  6. Step 6: Final answer
    x = 5,226,776.58

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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.