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Finding the Fourth Proportional to 558,537.62, 770,758.89 and 303,889.82

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Solution

The fourth proportional to 558,537.62, 770,758.89 and 303,889.82 is: 419,355.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,537.62 : 770,758.89 = 303,889.82 : x
  2. Step 2: Convert to fraction form
    558,537.62/770,758.89 = 303,889.82/x
  3. Step 3: Cross multiply
    558,537.62x = 770,758.89 × 303,889.82
  4. Step 4: Simplify right side
    558,537.62x = 234,225,780,345.50
  5. Step 5: Solve for x
    x = 234,225,780,345.50/558,537.62
  6. Step 6: Final answer
    x = 419,355.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.