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Finding the Fourth Proportional to 361,105.55, 498,325.34 and 199,960.60

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Solution

The fourth proportional to 361,105.55, 498,325.34 and 199,960.60 is: 275,945.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,105.55 : 498,325.34 = 199,960.60 : x
  2. Step 2: Convert to fraction form
    361,105.55/498,325.34 = 199,960.60/x
  3. Step 3: Cross multiply
    361,105.55x = 498,325.34 × 199,960.60
  4. Step 4: Simplify right side
    361,105.55x = 99,645,433,981.60
  5. Step 5: Solve for x
    x = 99,645,433,981.60/361,105.55
  6. Step 6: Final answer
    x = 275,945.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.