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Finding the Fourth Proportional to 280,198.88, 386,674.45 and 179,596.88

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Solution

The fourth proportional to 280,198.88, 386,674.45 and 179,596.88 is: 247,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,198.88 : 386,674.45 = 179,596.88 : x
  2. Step 2: Convert to fraction form
    280,198.88/386,674.45 = 179,596.88/x
  3. Step 3: Cross multiply
    280,198.88x = 386,674.45 × 179,596.88
  4. Step 4: Simplify right side
    280,198.88x = 69,445,524,795.72
  5. Step 5: Solve for x
    x = 69,445,524,795.72/280,198.88
  6. Step 6: Final answer
    x = 247,843.69

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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.