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Finding the Fourth Proportional to 410,725.20, 615,166.20 and 336,997.20

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Solution

The fourth proportional to 410,725.20, 615,166.20 and 336,997.20 is: 504,739.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,725.20 : 615,166.20 = 336,997.20 : x
  2. Step 2: Convert to fraction form
    410,725.20/615,166.20 = 336,997.20/x
  3. Step 3: Cross multiply
    410,725.20x = 615,166.20 × 336,997.20
  4. Step 4: Simplify right side
    410,725.20x = 207,309,286,934.64
  5. Step 5: Solve for x
    x = 207,309,286,934.64/410,725.20
  6. Step 6: Final answer
    x = 504,739.63

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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.