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Finding the Fourth Proportional to 336,992,499.80, 505,488,749.70 and 275,770,496.60

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Solution

The fourth proportional to 336,992,499.80, 505,488,749.70 and 275,770,496.60 is: 413,655,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,992,499.80 : 505,488,749.70 = 275,770,496.60 : x
  2. Step 2: Convert to fraction form
    336,992,499.80/505,488,749.70 = 275,770,496.60/x
  3. Step 3: Cross multiply
    336,992,499.80x = 505,488,749.70 × 275,770,496.60
  4. Step 4: Simplify right side
    336,992,499.80x = 139,398,883,530,482,112
  5. Step 5: Solve for x
    x = 139,398,883,530,482,112/336,992,499.80
  6. Step 6: Final answer
    x = 413,655,744.90

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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.