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Finding the Fourth Proportional to 395,916.20, 594,004.62 and 263,318.12

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Solution

The fourth proportional to 395,916.20, 594,004.62 and 263,318.12 is: 395,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,916.20 : 594,004.62 = 263,318.12 : x
  2. Step 2: Convert to fraction form
    395,916.20/594,004.62 = 263,318.12/x
  3. Step 3: Cross multiply
    395,916.20x = 594,004.62 × 263,318.12
  4. Step 4: Simplify right side
    395,916.20x = 156,412,179,809.71
  5. Step 5: Solve for x
    x = 156,412,179,809.71/395,916.20
  6. Step 6: Final answer
    x = 395,063.85

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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.