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Finding the Fourth Proportional to 220,618.01, 330,257.86 and 199,566.92

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Solution

The fourth proportional to 220,618.01, 330,257.86 and 199,566.92 is: 298,745.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,618.01 : 330,257.86 = 199,566.92 : x
  2. Step 2: Convert to fraction form
    220,618.01/330,257.86 = 199,566.92/x
  3. Step 3: Cross multiply
    220,618.01x = 330,257.86 × 199,566.92
  4. Step 4: Simplify right side
    220,618.01x = 65,908,544,252.72
  5. Step 5: Solve for x
    x = 65,908,544,252.72/220,618.01
  6. Step 6: Final answer
    x = 298,745.07

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1.5x scale

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.