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Finding the Fourth Proportional to 395,904.60, 593,672.22 and 115,365.96

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Solution

The fourth proportional to 395,904.60, 593,672.22 and 115,365.96 is: 172,995.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,904.60 : 593,672.22 = 115,365.96 : x
  2. Step 2: Convert to fraction form
    395,904.60/593,672.22 = 115,365.96/x
  3. Step 3: Cross multiply
    395,904.60x = 593,672.22 × 115,365.96
  4. Step 4: Simplify right side
    395,904.60x = 68,489,565,585.63
  5. Step 5: Solve for x
    x = 68,489,565,585.63/395,904.60
  6. Step 6: Final answer
    x = 172,995.12

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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.