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Finding the Fourth Proportional to 475,939.45, 713,679.47 and 276,310.09

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Solution

The fourth proportional to 475,939.45, 713,679.47 and 276,310.09 is: 414,331.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,939.45 : 713,679.47 = 276,310.09 : x
  2. Step 2: Convert to fraction form
    475,939.45/713,679.47 = 276,310.09/x
  3. Step 3: Cross multiply
    475,939.45x = 713,679.47 × 276,310.09
  4. Step 4: Simplify right side
    475,939.45x = 197,196,838,586.85
  5. Step 5: Solve for x
    x = 197,196,838,586.85/475,939.45
  6. Step 6: Final answer
    x = 414,331.78

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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.