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Finding the Fourth Proportional to 603,976.62, 905,300.55 and 248,796.87

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Solution

The fourth proportional to 603,976.62, 905,300.55 and 248,796.87 is: 372,921.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,976.62 : 905,300.55 = 248,796.87 : x
  2. Step 2: Convert to fraction form
    603,976.62/905,300.55 = 248,796.87/x
  3. Step 3: Cross multiply
    603,976.62x = 905,300.55 × 248,796.87
  4. Step 4: Simplify right side
    603,976.62x = 225,235,943,249.28
  5. Step 5: Solve for x
    x = 225,235,943,249.28/603,976.62
  6. Step 6: Final answer
    x = 372,921.63

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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.