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Finding the Fourth Proportional to 446,056.80, 668,890.80 and 179,728.80

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Solution

The fourth proportional to 446,056.80, 668,890.80 and 179,728.80 is: 269,514.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,056.80 : 668,890.80 = 179,728.80 : x
  2. Step 2: Convert to fraction form
    446,056.80/668,890.80 = 179,728.80/x
  3. Step 3: Cross multiply
    446,056.80x = 668,890.80 × 179,728.80
  4. Step 4: Simplify right side
    446,056.80x = 120,218,940,815.04
  5. Step 5: Solve for x
    x = 120,218,940,815.04/446,056.80
  6. Step 6: Final answer
    x = 269,514.87

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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.