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Finding the Fourth Proportional to 6,443,614.75, 8,891,960.74 and 3,542,985.31

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Solution

The fourth proportional to 6,443,614.75, 8,891,960.74 and 3,542,985.31 is: 4,889,194.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,443,614.75 : 8,891,960.74 = 3,542,985.31 : x
  2. Step 2: Convert to fraction form
    6,443,614.75/8,891,960.74 = 3,542,985.31/x
  3. Step 3: Cross multiply
    6,443,614.75x = 8,891,960.74 × 3,542,985.31
  4. Step 4: Simplify right side
    6,443,614.75x = 31,504,086,278,916.73
  5. Step 5: Solve for x
    x = 31,504,086,278,916.73/6,443,614.75
  6. Step 6: Final answer
    x = 4,889,194.57

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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.