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Finding the Fourth Proportional to 483,387.22, 667,093.28 and 330,745.55

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Solution

The fourth proportional to 483,387.22, 667,093.28 and 330,745.55 is: 456,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,387.22 : 667,093.28 = 330,745.55 : x
  2. Step 2: Convert to fraction form
    483,387.22/667,093.28 = 330,745.55/x
  3. Step 3: Cross multiply
    483,387.22x = 667,093.28 × 330,745.55
  4. Step 4: Simplify right side
    483,387.22x = 220,638,133,808.91
  5. Step 5: Solve for x
    x = 220,638,133,808.91/483,387.22
  6. Step 6: Final answer
    x = 456,441.80

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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.