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Finding the Fourth Proportional to 395,148.20, 590,972.70 and 332,162.60

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Solution

The fourth proportional to 395,148.20, 590,972.70 and 332,162.60 is: 496,773.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,148.20 : 590,972.70 = 332,162.60 : x
  2. Step 2: Convert to fraction form
    395,148.20/590,972.70 = 332,162.60/x
  3. Step 3: Cross multiply
    395,148.20x = 590,972.70 × 332,162.60
  4. Step 4: Simplify right side
    395,148.20x = 196,299,028,561.02
  5. Step 5: Solve for x
    x = 196,299,028,561.02/395,148.20
  6. Step 6: Final answer
    x = 496,773.18

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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.