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Finding the Fourth Proportional to 886,469,759.10, 1,329,704,638.65 and 519,137,739.90

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Solution

The fourth proportional to 886,469,759.10, 1,329,704,638.65 and 519,137,739.90 is: 778,706,609.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,469,759.10 : 1,329,704,638.65 = 519,137,739.90 : x
  2. Step 2: Convert to fraction form
    886,469,759.10/1,329,704,638.65 = 519,137,739.90/x
  3. Step 3: Cross multiply
    886,469,759.10x = 1,329,704,638.65 × 519,137,739.90
  4. Step 4: Simplify right side
    886,469,759.10x = 690,299,860,843,307,264
  5. Step 5: Solve for x
    x = 690,299,860,843,307,264/886,469,759.10
  6. Step 6: Final answer
    x = 778,706,609.85

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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.