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Finding the Fourth Proportional to 295,488,743.80, 443,233,115.70 and 279,616,372.60

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Solution

The fourth proportional to 295,488,743.80, 443,233,115.70 and 279,616,372.60 is: 419,424,558.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,488,743.80 : 443,233,115.70 = 279,616,372.60 : x
  2. Step 2: Convert to fraction form
    295,488,743.80/443,233,115.70 = 279,616,372.60/x
  3. Step 3: Cross multiply
    295,488,743.80x = 443,233,115.70 × 279,616,372.60
  4. Step 4: Simplify right side
    295,488,743.80x = 123,935,236,028,230,112
  5. Step 5: Solve for x
    x = 123,935,236,028,230,112/295,488,743.80
  6. Step 6: Final answer
    x = 419,424,558.90

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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.