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Finding the Fourth Proportional to 462,800,998.98, 638,664,463.26 and 251,107,760.61

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Solution

The fourth proportional to 462,800,998.98, 638,664,463.26 and 251,107,760.61 is: 346,528,213.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,800,998.98 : 638,664,463.26 = 251,107,760.61 : x
  2. Step 2: Convert to fraction form
    462,800,998.98/638,664,463.26 = 251,107,760.61/x
  3. Step 3: Cross multiply
    462,800,998.98x = 638,664,463.26 × 251,107,760.61
  4. Step 4: Simplify right side
    462,800,998.98x = 160,373,603,150,406,240
  5. Step 5: Solve for x
    x = 160,373,603,150,406,240/462,800,998.98
  6. Step 6: Final answer
    x = 346,528,213.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.