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Finding the Fourth Proportional to 662,189,812.64, 993,251,700.96 and 247,636,156.64

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Solution

The fourth proportional to 662,189,812.64, 993,251,700.96 and 247,636,156.64 is: 371,441,887.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,189,812.64 : 993,251,700.96 = 247,636,156.64 : x
  2. Step 2: Convert to fraction form
    662,189,812.64/993,251,700.96 = 247,636,156.64/x
  3. Step 3: Cross multiply
    662,189,812.64x = 993,251,700.96 × 247,636,156.64
  4. Step 4: Simplify right side
    662,189,812.64x = 245,965,033,801,876,992
  5. Step 5: Solve for x
    x = 245,965,033,801,876,992/662,189,812.64
  6. Step 6: Final answer
    x = 371,441,887.37

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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.