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Finding the Fourth Proportional to 3,912,296.43, 5,868,485.42 and 1,072,408.89

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Solution

The fourth proportional to 3,912,296.43, 5,868,485.42 and 1,072,408.89 is: 1,608,624.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912,296.43 : 5,868,485.42 = 1,072,408.89 : x
  2. Step 2: Convert to fraction form
    3,912,296.43/5,868,485.42 = 1,072,408.89/x
  3. Step 3: Cross multiply
    3,912,296.43x = 5,868,485.42 × 1,072,408.89
  4. Step 4: Simplify right side
    3,912,296.43x = 6,293,415,929,881.34
  5. Step 5: Solve for x
    x = 6,293,415,929,881.34/3,912,296.43
  6. Step 6: Final answer
    x = 1,608,624.51

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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.