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Finding the Fourth Proportional to 321,864.88, 444,144.20 and 191,019.96

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Solution

The fourth proportional to 321,864.88, 444,144.20 and 191,019.96 is: 263,590.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,864.88 : 444,144.20 = 191,019.96 : x
  2. Step 2: Convert to fraction form
    321,864.88/444,144.20 = 191,019.96/x
  3. Step 3: Cross multiply
    321,864.88x = 444,144.20 × 191,019.96
  4. Step 4: Simplify right side
    321,864.88x = 84,840,407,318.23
  5. Step 5: Solve for x
    x = 84,840,407,318.23/321,864.88
  6. Step 6: Final answer
    x = 263,590.14

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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.