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Finding the Fourth Proportional to 395,588.68, 593,480.22 and 115,108.36

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Solution

The fourth proportional to 395,588.68, 593,480.22 and 115,108.36 is: 172,690.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,588.68 : 593,480.22 = 115,108.36 : x
  2. Step 2: Convert to fraction form
    395,588.68/593,480.22 = 115,108.36/x
  3. Step 3: Cross multiply
    395,588.68x = 593,480.22 × 115,108.36
  4. Step 4: Simplify right side
    395,588.68x = 68,314,534,816.64
  5. Step 5: Solve for x
    x = 68,314,534,816.64/395,588.68
  6. Step 6: Final answer
    x = 172,690.82

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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.