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Finding the Fourth Proportional to 395,937.20, 593,905.80 and 262,967.60

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Solution

The fourth proportional to 395,937.20, 593,905.80 and 262,967.60 is: 394,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,937.20 : 593,905.80 = 262,967.60 : x
  2. Step 2: Convert to fraction form
    395,937.20/593,905.80 = 262,967.60/x
  3. Step 3: Cross multiply
    395,937.20x = 593,905.80 × 262,967.60
  4. Step 4: Simplify right side
    395,937.20x = 156,177,982,852.08
  5. Step 5: Solve for x
    x = 156,177,982,852.08/395,937.20
  6. Step 6: Final answer
    x = 394,451.40

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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.