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Finding the Fourth Proportional to 321,906.20, 444,285.53 and 185,915.71

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Solution

The fourth proportional to 321,906.20, 444,285.53 and 185,915.71 is: 256,595.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,906.20 : 444,285.53 = 185,915.71 : x
  2. Step 2: Convert to fraction form
    321,906.20/444,285.53 = 185,915.71/x
  3. Step 3: Cross multiply
    321,906.20x = 444,285.53 × 185,915.71
  4. Step 4: Simplify right side
    321,906.20x = 82,599,659,752.68
  5. Step 5: Solve for x
    x = 82,599,659,752.68/321,906.20
  6. Step 6: Final answer
    x = 256,595.43

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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.