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Finding the Fourth Proportional to 2,647,977.62, 3,971,966.42 and 754,669.85

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Solution

The fourth proportional to 2,647,977.62, 3,971,966.42 and 754,669.85 is: 1,132,004.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647,977.62 : 3,971,966.42 = 754,669.85 : x
  2. Step 2: Convert to fraction form
    2,647,977.62/3,971,966.42 = 754,669.85/x
  3. Step 3: Cross multiply
    2,647,977.62x = 3,971,966.42 × 754,669.85
  4. Step 4: Simplify right side
    2,647,977.62x = 2,997,523,284,413.28
  5. Step 5: Solve for x
    x = 2,997,523,284,413.28/2,647,977.62
  6. Step 6: Final answer
    x = 1,132,004.77

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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.