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Finding the Fourth Proportional to 322,143.88, 444,558.90 and 178,904.20

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Solution

The fourth proportional to 322,143.88, 444,558.90 and 178,904.20 is: 246,887.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,143.88 : 444,558.90 = 178,904.20 : x
  2. Step 2: Convert to fraction form
    322,143.88/444,558.90 = 178,904.20/x
  3. Step 3: Cross multiply
    322,143.88x = 444,558.90 × 178,904.20
  4. Step 4: Simplify right side
    322,143.88x = 79,533,454,357.38
  5. Step 5: Solve for x
    x = 79,533,454,357.38/322,143.88
  6. Step 6: Final answer
    x = 246,887.99

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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.