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Finding the Fourth Proportional to 324,286.50, 447,478.92 and 188,303.70

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Solution

The fourth proportional to 324,286.50, 447,478.92 and 188,303.70 is: 259,837.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,286.50 : 447,478.92 = 188,303.70 : x
  2. Step 2: Convert to fraction form
    324,286.50/447,478.92 = 188,303.70/x
  3. Step 3: Cross multiply
    324,286.50x = 447,478.92 × 188,303.70
  4. Step 4: Simplify right side
    324,286.50x = 84,261,936,308.00
  5. Step 5: Solve for x
    x = 84,261,936,308.00/324,286.50
  6. Step 6: Final answer
    x = 259,837.94

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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.