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Finding the Fourth Proportional to 410,836.80, 615,380.40 and 332,104.80

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Solution

The fourth proportional to 410,836.80, 615,380.40 and 332,104.80 is: 497,450.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,836.80 : 615,380.40 = 332,104.80 : x
  2. Step 2: Convert to fraction form
    410,836.80/615,380.40 = 332,104.80/x
  3. Step 3: Cross multiply
    410,836.80x = 615,380.40 × 332,104.80
  4. Step 4: Simplify right side
    410,836.80x = 204,370,784,665.92
  5. Step 5: Solve for x
    x = 204,370,784,665.92/410,836.80
  6. Step 6: Final answer
    x = 497,450.05

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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.