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Finding the Fourth Proportional to 297,740.80, 446,611.20 and 269,747.20

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Solution

The fourth proportional to 297,740.80, 446,611.20 and 269,747.20 is: 404,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,740.80 : 446,611.20 = 269,747.20 : x
  2. Step 2: Convert to fraction form
    297,740.80/446,611.20 = 269,747.20/x
  3. Step 3: Cross multiply
    297,740.80x = 446,611.20 × 269,747.20
  4. Step 4: Simplify right side
    297,740.80x = 120,472,120,688.64
  5. Step 5: Solve for x
    x = 120,472,120,688.64/297,740.80
  6. Step 6: Final answer
    x = 404,620.80

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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.