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Finding the Fourth Proportional to 482,486.63, 723,760.92 and 127,491.57

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Solution

The fourth proportional to 482,486.63, 723,760.92 and 127,491.57 is: 191,245.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,486.63 : 723,760.92 = 127,491.57 : x
  2. Step 2: Convert to fraction form
    482,486.63/723,760.92 = 127,491.57/x
  3. Step 3: Cross multiply
    482,486.63x = 723,760.92 × 127,491.57
  4. Step 4: Simplify right side
    482,486.63x = 92,273,415,995.44
  5. Step 5: Solve for x
    x = 92,273,415,995.44/482,486.63
  6. Step 6: Final answer
    x = 191,245.54

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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.