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Finding the Fourth Proportional to 267,507,515.20, 400,883,359.20 and 197,876,934.40

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Solution

The fourth proportional to 267,507,515.20, 400,883,359.20 and 197,876,934.40 is: 296,535,856.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,507,515.20 : 400,883,359.20 = 197,876,934.40 : x
  2. Step 2: Convert to fraction form
    267,507,515.20/400,883,359.20 = 197,876,934.40/x
  3. Step 3: Cross multiply
    267,507,515.20x = 400,883,359.20 × 197,876,934.40
  4. Step 4: Simplify right side
    267,507,515.20x = 79,325,570,170,470,032
  5. Step 5: Solve for x
    x = 79,325,570,170,470,032/267,507,515.20
  6. Step 6: Final answer
    x = 296,535,856.61

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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.