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Finding the Fourth Proportional to 611,793.20, 844,275.56 and 339,853.73

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Solution

The fourth proportional to 611,793.20, 844,275.56 and 339,853.73 is: 468,998.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,793.20 : 844,275.56 = 339,853.73 : x
  2. Step 2: Convert to fraction form
    611,793.20/844,275.56 = 339,853.73/x
  3. Step 3: Cross multiply
    611,793.20x = 844,275.56 × 339,853.73
  4. Step 4: Simplify right side
    611,793.20x = 286,930,192,293.19
  5. Step 5: Solve for x
    x = 286,930,192,293.19/611,793.20
  6. Step 6: Final answer
    x = 468,998.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.