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Finding the Fourth Proportional to 305,882.66, 422,185.54 and 169,963.32

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Solution

The fourth proportional to 305,882.66, 422,185.54 and 169,963.32 is: 234,586.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,882.66 : 422,185.54 = 169,963.32 : x
  2. Step 2: Convert to fraction form
    305,882.66/422,185.54 = 169,963.32/x
  3. Step 3: Cross multiply
    305,882.66x = 422,185.54 × 169,963.32
  4. Step 4: Simplify right side
    305,882.66x = 71,756,056,034.39
  5. Step 5: Solve for x
    x = 71,756,056,034.39/305,882.66
  6. Step 6: Final answer
    x = 234,586.87

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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.