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Finding the Fourth Proportional to 803,940.48, 1,204,854.48 and 449,121.60

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Solution

The fourth proportional to 803,940.48, 1,204,854.48 and 449,121.60 is: 673,092.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,940.48 : 1,204,854.48 = 449,121.60 : x
  2. Step 2: Convert to fraction form
    803,940.48/1,204,854.48 = 449,121.60/x
  3. Step 3: Cross multiply
    803,940.48x = 1,204,854.48 × 449,121.60
  4. Step 4: Simplify right side
    803,940.48x = 541,126,171,824.77
  5. Step 5: Solve for x
    x = 541,126,171,824.77/803,940.48
  6. Step 6: Final answer
    x = 673,092.33

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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.