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Finding the Fourth Proportional to 300,890,906.55, 451,336,359.83 and 300,890,906.55

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Solution

The fourth proportional to 300,890,906.55, 451,336,359.83 and 300,890,906.55 is: 451,336,359.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,890,906.55 : 451,336,359.83 = 300,890,906.55 : x
  2. Step 2: Convert to fraction form
    300,890,906.55/451,336,359.83 = 300,890,906.55/x
  3. Step 3: Cross multiply
    300,890,906.55x = 451,336,359.83 × 300,890,906.55
  4. Step 4: Simplify right side
    300,890,906.55x = 135,803,006,466,721,248
  5. Step 5: Solve for x
    x = 135,803,006,466,721,248/300,890,906.55
  6. Step 6: Final answer
    x = 451,336,359.83

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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.