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Finding the Fourth Proportional to 449,815.20, 620,744.44 and 245,867.44

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Solution

The fourth proportional to 449,815.20, 620,744.44 and 245,867.44 is: 339,296.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,815.20 : 620,744.44 = 245,867.44 : x
  2. Step 2: Convert to fraction form
    449,815.20/620,744.44 = 245,867.44/x
  3. Step 3: Cross multiply
    449,815.20x = 620,744.44 × 245,867.44
  4. Step 4: Simplify right side
    449,815.20x = 152,620,846,357.03
  5. Step 5: Solve for x
    x = 152,620,846,357.03/449,815.20
  6. Step 6: Final answer
    x = 339,296.77

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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.