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Finding the Fourth Proportional to 476,388.70, 713,648.83 and 276,288.82

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Solution

The fourth proportional to 476,388.70, 713,648.83 and 276,288.82 is: 413,891.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,388.70 : 713,648.83 = 276,288.82 : x
  2. Step 2: Convert to fraction form
    476,388.70/713,648.83 = 276,288.82/x
  3. Step 3: Cross multiply
    476,388.70x = 713,648.83 × 276,288.82
  4. Step 4: Simplify right side
    476,388.70x = 197,173,193,135.08
  5. Step 5: Solve for x
    x = 197,173,193,135.08/476,388.70
  6. Step 6: Final answer
    x = 413,891.42

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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.