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Finding the Fourth Proportional to 587,243.61, 810,427.92 and 329,203.44

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Solution

The fourth proportional to 587,243.61, 810,427.92 and 329,203.44 is: 454,318.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,243.61 : 810,427.92 = 329,203.44 : x
  2. Step 2: Convert to fraction form
    587,243.61/810,427.92 = 329,203.44/x
  3. Step 3: Cross multiply
    587,243.61x = 810,427.92 × 329,203.44
  4. Step 4: Simplify right side
    587,243.61x = 266,795,659,136.05
  5. Step 5: Solve for x
    x = 266,795,659,136.05/587,243.61
  6. Step 6: Final answer
    x = 454,318.54

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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.