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Finding the Fourth Proportional to 449,432.40, 673,273.80 and 271,410.60

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Solution

The fourth proportional to 449,432.40, 673,273.80 and 271,410.60 is: 406,587.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,432.40 : 673,273.80 = 271,410.60 : x
  2. Step 2: Convert to fraction form
    449,432.40/673,273.80 = 271,410.60/x
  3. Step 3: Cross multiply
    449,432.40x = 673,273.80 × 271,410.60
  4. Step 4: Simplify right side
    449,432.40x = 182,733,646,022.28
  5. Step 5: Solve for x
    x = 182,733,646,022.28/449,432.40
  6. Step 6: Final answer
    x = 406,587.61

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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.