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Finding the Fourth Proportional to 496,136.63, 684,949.07 and 379,630.46

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Solution

The fourth proportional to 496,136.63, 684,949.07 and 379,630.46 is: 524,104.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,136.63 : 684,949.07 = 379,630.46 : x
  2. Step 2: Convert to fraction form
    496,136.63/684,949.07 = 379,630.46/x
  3. Step 3: Cross multiply
    496,136.63x = 684,949.07 × 379,630.46
  4. Step 4: Simplify right side
    496,136.63x = 260,027,530,520.67
  5. Step 5: Solve for x
    x = 260,027,530,520.67/496,136.63
  6. Step 6: Final answer
    x = 524,104.68

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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.