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Finding the Fourth Proportional to 395,937.60, 593,906.40 and 185,596.80

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Solution

The fourth proportional to 395,937.60, 593,906.40 and 185,596.80 is: 278,395.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,937.60 : 593,906.40 = 185,596.80 : x
  2. Step 2: Convert to fraction form
    395,937.60/593,906.40 = 185,596.80/x
  3. Step 3: Cross multiply
    395,937.60x = 593,906.40 × 185,596.80
  4. Step 4: Simplify right side
    395,937.60x = 110,227,127,339.52
  5. Step 5: Solve for x
    x = 110,227,127,339.52/395,937.60
  6. Step 6: Final answer
    x = 278,395.20

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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.