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Finding the Fourth Proportional to 587,572.82, 811,098.52 and 396,844.56

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Solution

The fourth proportional to 587,572.82, 811,098.52 and 396,844.56 is: 547,813.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,572.82 : 811,098.52 = 396,844.56 : x
  2. Step 2: Convert to fraction form
    587,572.82/811,098.52 = 396,844.56/x
  3. Step 3: Cross multiply
    587,572.82x = 811,098.52 × 396,844.56
  4. Step 4: Simplify right side
    587,572.82x = 321,880,035,286.05
  5. Step 5: Solve for x
    x = 321,880,035,286.05/587,572.82
  6. Step 6: Final answer
    x = 547,813.01

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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.