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Finding the Fourth Proportional to 2,647,984.37, 3,971,976.55 and 754,676.60

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Solution

The fourth proportional to 2,647,984.37, 3,971,976.55 and 754,676.60 is: 1,132,014.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647,984.37 : 3,971,976.55 = 754,676.60 : x
  2. Step 2: Convert to fraction form
    2,647,984.37/3,971,976.55 = 754,676.60/x
  3. Step 3: Cross multiply
    2,647,984.37x = 3,971,976.55 × 754,676.60
  4. Step 4: Simplify right side
    2,647,984.37x = 2,997,557,736,287.16
  5. Step 5: Solve for x
    x = 2,997,557,736,287.16/2,647,984.37
  6. Step 6: Final answer
    x = 1,132,014.89

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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.