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Finding the Fourth Proportional to 451,507.20, 677,239.20 and 151,958.40

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Solution

The fourth proportional to 451,507.20, 677,239.20 and 151,958.40 is: 227,930.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,507.20 : 677,239.20 = 151,958.40 : x
  2. Step 2: Convert to fraction form
    451,507.20/677,239.20 = 151,958.40/x
  3. Step 3: Cross multiply
    451,507.20x = 677,239.20 × 151,958.40
  4. Step 4: Simplify right side
    451,507.20x = 102,912,185,249.28
  5. Step 5: Solve for x
    x = 102,912,185,249.28/451,507.20
  6. Step 6: Final answer
    x = 227,930.33

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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.