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Finding the Fourth Proportional to 629,858,339.80, 945,259,901.70 and 322,992,496.60

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Solution

The fourth proportional to 629,858,339.80, 945,259,901.70 and 322,992,496.60 is: 484,730,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,858,339.80 : 945,259,901.70 = 322,992,496.60 : x
  2. Step 2: Convert to fraction form
    629,858,339.80/945,259,901.70 = 322,992,496.60/x
  3. Step 3: Cross multiply
    629,858,339.80x = 945,259,901.70 × 322,992,496.60
  4. Step 4: Simplify right side
    629,858,339.80x = 305,311,855,585,953,600
  5. Step 5: Solve for x
    x = 305,311,855,585,953,600/629,858,339.80
  6. Step 6: Final answer
    x = 484,730,988.37

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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.