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Finding the Fourth Proportional to 436,752,496.70, 655,128,745.05 and 403,496,099.90

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Solution

The fourth proportional to 436,752,496.70, 655,128,745.05 and 403,496,099.90 is: 605,244,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,752,496.70 : 655,128,745.05 = 403,496,099.90 : x
  2. Step 2: Convert to fraction form
    436,752,496.70/655,128,745.05 = 403,496,099.90/x
  3. Step 3: Cross multiply
    436,752,496.70x = 655,128,745.05 × 403,496,099.90
  4. Step 4: Simplify right side
    436,752,496.70x = 264,341,893,560,056,384
  5. Step 5: Solve for x
    x = 264,341,893,560,056,384/436,752,496.70
  6. Step 6: Final answer
    x = 605,244,149.85

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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.