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Finding the Fourth Proportional to 299,402.55, 449,103.83 and 269,878.05

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Solution

The fourth proportional to 299,402.55, 449,103.83 and 269,878.05 is: 404,817.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,402.55 : 449,103.83 = 269,878.05 : x
  2. Step 2: Convert to fraction form
    299,402.55/449,103.83 = 269,878.05/x
  3. Step 3: Cross multiply
    299,402.55x = 449,103.83 × 269,878.05
  4. Step 4: Simplify right side
    299,402.55x = 121,203,264,538.54
  5. Step 5: Solve for x
    x = 121,203,264,538.54/299,402.55
  6. Step 6: Final answer
    x = 404,817.08

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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.