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Finding the Fourth Proportional to 322,391.80, 444,773.30 and 186,400.84

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Solution

The fourth proportional to 322,391.80, 444,773.30 and 186,400.84 is: 257,159.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,391.80 : 444,773.30 = 186,400.84 : x
  2. Step 2: Convert to fraction form
    322,391.80/444,773.30 = 186,400.84/x
  3. Step 3: Cross multiply
    322,391.80x = 444,773.30 × 186,400.84
  4. Step 4: Simplify right side
    322,391.80x = 82,906,116,729.57
  5. Step 5: Solve for x
    x = 82,906,116,729.57/322,391.80
  6. Step 6: Final answer
    x = 257,159.51

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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.