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Finding the Fourth Proportional to 491,231.20, 736,846.80 and 482,936.80

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Solution

The fourth proportional to 491,231.20, 736,846.80 and 482,936.80 is: 724,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,231.20 : 736,846.80 = 482,936.80 : x
  2. Step 2: Convert to fraction form
    491,231.20/736,846.80 = 482,936.80/x
  3. Step 3: Cross multiply
    491,231.20x = 736,846.80 × 482,936.80
  4. Step 4: Simplify right side
    491,231.20x = 355,850,435,682.24
  5. Step 5: Solve for x
    x = 355,850,435,682.24/491,231.20
  6. Step 6: Final answer
    x = 724,405.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.