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Finding the Fourth Proportional to 395,579.64, 593,467.86 and 115,096.86

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Solution

The fourth proportional to 395,579.64, 593,467.86 and 115,096.86 is: 172,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,579.64 : 593,467.86 = 115,096.86 : x
  2. Step 2: Convert to fraction form
    395,579.64/593,467.86 = 115,096.86/x
  3. Step 3: Cross multiply
    395,579.64x = 593,467.86 × 115,096.86
  4. Step 4: Simplify right side
    395,579.64x = 68,306,287,196.92
  5. Step 5: Solve for x
    x = 68,306,287,196.92/395,579.64
  6. Step 6: Final answer
    x = 172,673.92

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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.