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Finding the Fourth Proportional to 488,840.80, 733,844.40 and 275,778.40

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Solution

The fourth proportional to 488,840.80, 733,844.40 and 275,778.40 is: 413,996.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,840.80 : 733,844.40 = 275,778.40 : x
  2. Step 2: Convert to fraction form
    488,840.80/733,844.40 = 275,778.40/x
  3. Step 3: Cross multiply
    488,840.80x = 733,844.40 × 275,778.40
  4. Step 4: Simplify right side
    488,840.80x = 202,378,434,480.96
  5. Step 5: Solve for x
    x = 202,378,434,480.96/488,840.80
  6. Step 6: Final answer
    x = 413,996.61

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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.