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Finding the Fourth Proportional to 449,099.48, 619,741.80 and 267,717.80

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Solution

The fourth proportional to 449,099.48, 619,741.80 and 267,717.80 is: 369,441.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,099.48 : 619,741.80 = 267,717.80 : x
  2. Step 2: Convert to fraction form
    449,099.48/619,741.80 = 267,717.80/x
  3. Step 3: Cross multiply
    449,099.48x = 619,741.80 × 267,717.80
  4. Step 4: Simplify right side
    449,099.48x = 165,915,911,264.04
  5. Step 5: Solve for x
    x = 165,915,911,264.04/449,099.48
  6. Step 6: Final answer
    x = 369,441.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.