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Finding the Fourth Proportional to 3,969,426.98, 5,948,624.36 and 2,072,384.30

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Solution

The fourth proportional to 3,969,426.98, 5,948,624.36 and 2,072,384.30 is: 3,105,696.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969,426.98 : 5,948,624.36 = 2,072,384.30 : x
  2. Step 2: Convert to fraction form
    3,969,426.98/5,948,624.36 = 2,072,384.30/x
  3. Step 3: Cross multiply
    3,969,426.98x = 5,948,624.36 × 2,072,384.30
  4. Step 4: Simplify right side
    3,969,426.98x = 12,327,835,730,261.55
  5. Step 5: Solve for x
    x = 12,327,835,730,261.55/3,969,426.98
  6. Step 6: Final answer
    x = 3,105,696.56

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Why These Related Problems?

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