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Finding the Fourth Proportional to 320,086.62, 441,728.46 and 176,855.76

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Solution

The fourth proportional to 320,086.62, 441,728.46 and 176,855.76 is: 244,065.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,086.62 : 441,728.46 = 176,855.76 : x
  2. Step 2: Convert to fraction form
    320,086.62/441,728.46 = 176,855.76/x
  3. Step 3: Cross multiply
    320,086.62x = 441,728.46 × 176,855.76
  4. Step 4: Simplify right side
    320,086.62x = 78,122,222,506.93
  5. Step 5: Solve for x
    x = 78,122,222,506.93/320,086.62
  6. Step 6: Final answer
    x = 244,065.88

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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.