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Finding the Fourth Proportional to 299,449.80, 449,174.70 and 269,925.30

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Solution

The fourth proportional to 299,449.80, 449,174.70 and 269,925.30 is: 404,887.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,449.80 : 449,174.70 = 269,925.30 : x
  2. Step 2: Convert to fraction form
    299,449.80/449,174.70 = 269,925.30/x
  3. Step 3: Cross multiply
    299,449.80x = 449,174.70 × 269,925.30
  4. Step 4: Simplify right side
    299,449.80x = 121,243,615,649.91
  5. Step 5: Solve for x
    x = 121,243,615,649.91/299,449.80
  6. Step 6: Final answer
    x = 404,887.95

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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.