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Finding the Fourth Proportional to 449,405.91, 673,341.59 and 247,171.29

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Solution

The fourth proportional to 449,405.91, 673,341.59 and 247,171.29 is: 370,334.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,405.91 : 673,341.59 = 247,171.29 : x
  2. Step 2: Convert to fraction form
    449,405.91/673,341.59 = 247,171.29/x
  3. Step 3: Cross multiply
    449,405.91x = 673,341.59 × 247,171.29
  4. Step 4: Simplify right side
    449,405.91x = 166,430,709,410.95
  5. Step 5: Solve for x
    x = 166,430,709,410.95/449,405.91
  6. Step 6: Final answer
    x = 370,334.94

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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.