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Finding the Fourth Proportional to 322,170.81, 444,569.72 and 186,213.57

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Solution

The fourth proportional to 322,170.81, 444,569.72 and 186,213.57 is: 256,959.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,170.81 : 444,569.72 = 186,213.57 : x
  2. Step 2: Convert to fraction form
    322,170.81/444,569.72 = 186,213.57/x
  3. Step 3: Cross multiply
    322,170.81x = 444,569.72 × 186,213.57
  4. Step 4: Simplify right side
    322,170.81x = 82,784,913,744.03
  5. Step 5: Solve for x
    x = 82,784,913,744.03/322,170.81
  6. Step 6: Final answer
    x = 256,959.70

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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.