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Finding the Fourth Proportional to 629,857,209.20, 943,085,202.60 and 629,857,209.20

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Solution

The fourth proportional to 629,857,209.20, 943,085,202.60 and 629,857,209.20 is: 943,085,202.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857,209.20 : 943,085,202.60 = 629,857,209.20 : x
  2. Step 2: Convert to fraction form
    629,857,209.20/943,085,202.60 = 629,857,209.20/x
  3. Step 3: Cross multiply
    629,857,209.20x = 943,085,202.60 × 629,857,209.20
  4. Step 4: Simplify right side
    629,857,209.20x = 594,009,013,747,452,672
  5. Step 5: Solve for x
    x = 594,009,013,747,452,672/629,857,209.20
  6. Step 6: Final answer
    x = 943,085,202.60

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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.