Home / 483,249.12-724,898.72-123,423.36

Finding the Fourth Proportional to 483,249.12, 724,898.72 and 123,423.36

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Solution

The fourth proportional to 483,249.12, 724,898.72 and 123,423.36 is: 185,141.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,249.12 : 724,898.72 = 123,423.36 : x
  2. Step 2: Convert to fraction form
    483,249.12/724,898.72 = 123,423.36/x
  3. Step 3: Cross multiply
    483,249.12x = 724,898.72 × 123,423.36
  4. Step 4: Simplify right side
    483,249.12x = 89,469,435,682.10
  5. Step 5: Solve for x
    x = 89,469,435,682.10/483,249.12
  6. Step 6: Final answer
    x = 185,141.44

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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.