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Finding the Fourth Proportional to 606,821,906.80, 908,693,212.20 and 333,884,306.80

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Solution

The fourth proportional to 606,821,906.80, 908,693,212.20 and 333,884,306.80 is: 499,979,318.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,821,906.80 : 908,693,212.20 = 333,884,306.80 : x
  2. Step 2: Convert to fraction form
    606,821,906.80/908,693,212.20 = 333,884,306.80/x
  3. Step 3: Cross multiply
    606,821,906.80x = 908,693,212.20 × 333,884,306.80
  4. Step 4: Simplify right side
    606,821,906.80x = 303,398,403,249,262,336
  5. Step 5: Solve for x
    x = 303,398,403,249,262,336/606,821,906.80
  6. Step 6: Final answer
    x = 499,979,318.23

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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.