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Finding the Fourth Proportional to 627,709.77, 941,556.56 and 154,399.23

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Solution

The fourth proportional to 627,709.77, 941,556.56 and 154,399.23 is: 231,596.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,709.77 : 941,556.56 = 154,399.23 : x
  2. Step 2: Convert to fraction form
    627,709.77/941,556.56 = 154,399.23/x
  3. Step 3: Cross multiply
    627,709.77x = 941,556.56 × 154,399.23
  4. Step 4: Simplify right side
    627,709.77x = 145,375,607,093.45
  5. Step 5: Solve for x
    x = 145,375,607,093.45/627,709.77
  6. Step 6: Final answer
    x = 231,596.85

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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.