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Finding the Fourth Proportional to 3,652,608.60, 5,478,912.90 and 1,972,992.60

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Solution

The fourth proportional to 3,652,608.60, 5,478,912.90 and 1,972,992.60 is: 2,959,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,652,608.60 : 5,478,912.90 = 1,972,992.60 : x
  2. Step 2: Convert to fraction form
    3,652,608.60/5,478,912.90 = 1,972,992.60/x
  3. Step 3: Cross multiply
    3,652,608.60x = 5,478,912.90 × 1,972,992.60
  4. Step 4: Simplify right side
    3,652,608.60x = 10,809,854,607,744.54
  5. Step 5: Solve for x
    x = 10,809,854,607,744.54/3,652,608.60
  6. Step 6: Final answer
    x = 2,959,488.90

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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.