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Finding the Fourth Proportional to 361,081.50, 498,252.22 and 199,896.18

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Solution

The fourth proportional to 361,081.50, 498,252.22 and 199,896.18 is: 275,834.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,081.50 : 498,252.22 = 199,896.18 : x
  2. Step 2: Convert to fraction form
    361,081.50/498,252.22 = 199,896.18/x
  3. Step 3: Cross multiply
    361,081.50x = 498,252.22 × 199,896.18
  4. Step 4: Simplify right side
    361,081.50x = 99,598,715,454.52
  5. Step 5: Solve for x
    x = 99,598,715,454.52/361,081.50
  6. Step 6: Final answer
    x = 275,834.45

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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.