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Finding the Fourth Proportional to 576,211.68, 795,172.82 and 321,563.07

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Solution

The fourth proportional to 576,211.68, 795,172.82 and 321,563.07 is: 443,757.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,211.68 : 795,172.82 = 321,563.07 : x
  2. Step 2: Convert to fraction form
    576,211.68/795,172.82 = 321,563.07/x
  3. Step 3: Cross multiply
    576,211.68x = 795,172.82 × 321,563.07
  4. Step 4: Simplify right side
    576,211.68x = 255,698,211,571.94
  5. Step 5: Solve for x
    x = 255,698,211,571.94/576,211.68
  6. Step 6: Final answer
    x = 443,757.43

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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.