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Finding the Fourth Proportional to 449,406.41, 673,342.34 and 247,171.79

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Solution

The fourth proportional to 449,406.41, 673,342.34 and 247,171.79 is: 370,335.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,406.41 : 673,342.34 = 247,171.79 : x
  2. Step 2: Convert to fraction form
    449,406.41/673,342.34 = 247,171.79/x
  3. Step 3: Cross multiply
    449,406.41x = 673,342.34 × 247,171.79
  4. Step 4: Simplify right side
    449,406.41x = 166,431,231,460.59
  5. Step 5: Solve for x
    x = 166,431,231,460.59/449,406.41
  6. Step 6: Final answer
    x = 370,335.69

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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.