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Finding the Fourth Proportional to 322,784.25, 445,442.27 and 181,472.25

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Solution

The fourth proportional to 322,784.25, 445,442.27 and 181,472.25 is: 250,431.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,784.25 : 445,442.27 = 181,472.25 : x
  2. Step 2: Convert to fraction form
    322,784.25/445,442.27 = 181,472.25/x
  3. Step 3: Cross multiply
    322,784.25x = 445,442.27 × 181,472.25
  4. Step 4: Simplify right side
    322,784.25x = 80,835,410,074.65
  5. Step 5: Solve for x
    x = 80,835,410,074.65/322,784.25
  6. Step 6: Final answer
    x = 250,431.71

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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.