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Finding the Fourth Proportional to 373,251,201.20, 559,876,801.80 and 339,238,977.20

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Solution

The fourth proportional to 373,251,201.20, 559,876,801.80 and 339,238,977.20 is: 508,858,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,251,201.20 : 559,876,801.80 = 339,238,977.20 : x
  2. Step 2: Convert to fraction form
    373,251,201.20/559,876,801.80 = 339,238,977.20/x
  3. Step 3: Cross multiply
    373,251,201.20x = 559,876,801.80 × 339,238,977.20
  4. Step 4: Simplify right side
    373,251,201.20x = 189,932,033,600,639,104
  5. Step 5: Solve for x
    x = 189,932,033,600,639,104/373,251,201.20
  6. Step 6: Final answer
    x = 508,858,465.80

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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.