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Finding the Fourth Proportional to 619,260.60, 928,672.20 and 219,914.40

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Solution

The fourth proportional to 619,260.60, 928,672.20 and 219,914.40 is: 329,793.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,260.60 : 928,672.20 = 219,914.40 : x
  2. Step 2: Convert to fraction form
    619,260.60/928,672.20 = 219,914.40/x
  3. Step 3: Cross multiply
    619,260.60x = 928,672.20 × 219,914.40
  4. Step 4: Simplify right side
    619,260.60x = 204,228,389,659.68
  5. Step 5: Solve for x
    x = 204,228,389,659.68/619,260.60
  6. Step 6: Final answer
    x = 329,793.93

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1.5x scale

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.