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Finding the Fourth Proportional to 330,813,612.45, 496,220,418.68 and 330,813,612.45

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Solution

The fourth proportional to 330,813,612.45, 496,220,418.68 and 330,813,612.45 is: 496,220,418.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,813,612.45 : 496,220,418.68 = 330,813,612.45 : x
  2. Step 2: Convert to fraction form
    330,813,612.45/496,220,418.68 = 330,813,612.45/x
  3. Step 3: Cross multiply
    330,813,612.45x = 496,220,418.68 × 330,813,612.45
  4. Step 4: Simplify right side
    330,813,612.45x = 164,156,469,273,328,192
  5. Step 5: Solve for x
    x = 164,156,469,273,328,192/330,813,612.45
  6. Step 6: Final answer
    x = 496,220,418.68

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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.