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Finding the Fourth Proportional to 449,424.40, 673,261.80 and 271,402.60

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Solution

The fourth proportional to 449,424.40, 673,261.80 and 271,402.60 is: 406,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,424.40 : 673,261.80 = 271,402.60 : x
  2. Step 2: Convert to fraction form
    449,424.40/673,261.80 = 271,402.60/x
  3. Step 3: Cross multiply
    449,424.40x = 673,261.80 × 271,402.60
  4. Step 4: Simplify right side
    449,424.40x = 182,725,003,000.68
  5. Step 5: Solve for x
    x = 182,725,003,000.68/449,424.40
  6. Step 6: Final answer
    x = 406,575.62

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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.