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Finding the Fourth Proportional to 394,593,404.20, 591,890,106.30 and 394,593,404.20

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Solution

The fourth proportional to 394,593,404.20, 591,890,106.30 and 394,593,404.20 is: 591,890,106.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,593,404.20 : 591,890,106.30 = 394,593,404.20 : x
  2. Step 2: Convert to fraction form
    394,593,404.20/591,890,106.30 = 394,593,404.20/x
  3. Step 3: Cross multiply
    394,593,404.20x = 591,890,106.30 × 394,593,404.20
  4. Step 4: Simplify right side
    394,593,404.20x = 233,555,931,957,216,832
  5. Step 5: Solve for x
    x = 233,555,931,957,216,832/394,593,404.20
  6. Step 6: Final answer
    x = 591,890,106.30

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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.