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Finding the Fourth Proportional to 629,857,404.70, 944,786,107.05 and 220,860,411.10

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Solution

The fourth proportional to 629,857,404.70, 944,786,107.05 and 220,860,411.10 is: 331,290,616.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857,404.70 : 944,786,107.05 = 220,860,411.10 : x
  2. Step 2: Convert to fraction form
    629,857,404.70/944,786,107.05 = 220,860,411.10/x
  3. Step 3: Cross multiply
    629,857,404.70x = 944,786,107.05 × 220,860,411.10
  4. Step 4: Simplify right side
    629,857,404.70x = 208,665,848,004,631,584
  5. Step 5: Solve for x
    x = 208,665,848,004,631,584/629,857,404.70
  6. Step 6: Final answer
    x = 331,290,616.65

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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.