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Finding the Fourth Proportional to 483,380.45, 667,083.95 and 330,738.79

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Solution

The fourth proportional to 483,380.45, 667,083.95 and 330,738.79 is: 456,432.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,380.45 : 667,083.95 = 330,738.79 : x
  2. Step 2: Convert to fraction form
    483,380.45/667,083.95 = 330,738.79/x
  3. Step 3: Cross multiply
    483,380.45x = 667,083.95 × 330,738.79
  4. Step 4: Simplify right side
    483,380.45x = 220,630,537,610.56
  5. Step 5: Solve for x
    x = 220,630,537,610.56/483,380.45
  6. Step 6: Final answer
    x = 456,432.48

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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.