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Finding the Fourth Proportional to 300,258.92, 449,990.94 and 159,714.92

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Solution

The fourth proportional to 300,258.92, 449,990.94 and 159,714.92 is: 239,360.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,258.92 : 449,990.94 = 159,714.92 : x
  2. Step 2: Convert to fraction form
    300,258.92/449,990.94 = 159,714.92/x
  3. Step 3: Cross multiply
    300,258.92x = 449,990.94 × 159,714.92
  4. Step 4: Simplify right side
    300,258.92x = 71,870,266,982.82
  5. Step 5: Solve for x
    x = 71,870,266,982.82/300,258.92
  6. Step 6: Final answer
    x = 239,360.97

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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.