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Finding the Fourth Proportional to 3,978,640.01, 5,963,711.05 and 2,269,102.26

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Solution

The fourth proportional to 3,978,640.01, 5,963,711.05 and 2,269,102.26 is: 3,401,230.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,640.01 : 5,963,711.05 = 2,269,102.26 : x
  2. Step 2: Convert to fraction form
    3,978,640.01/5,963,711.05 = 2,269,102.26/x
  3. Step 3: Cross multiply
    3,978,640.01x = 5,963,711.05 × 2,269,102.26
  4. Step 4: Simplify right side
    3,978,640.01x = 13,532,270,215,869.22
  5. Step 5: Solve for x
    x = 13,532,270,215,869.22/3,978,640.01
  6. Step 6: Final answer
    x = 3,401,230.11

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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.