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Finding the Fourth Proportional to 888,616.80, 1,332,147.60 and 794,138.40

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Solution

The fourth proportional to 888,616.80, 1,332,147.60 and 794,138.40 is: 1,190,512.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,616.80 : 1,332,147.60 = 794,138.40 : x
  2. Step 2: Convert to fraction form
    888,616.80/1,332,147.60 = 794,138.40/x
  3. Step 3: Cross multiply
    888,616.80x = 1,332,147.60 × 794,138.40
  4. Step 4: Simplify right side
    888,616.80x = 1,057,909,563,627.84
  5. Step 5: Solve for x
    x = 1,057,909,563,627.84/888,616.80
  6. Step 6: Final answer
    x = 1,190,512.68

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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.