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Finding the Fourth Proportional to 324,608.70, 447,927.18 and 222,721.86

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Solution

The fourth proportional to 324,608.70, 447,927.18 and 222,721.86 is: 307,333.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,608.70 : 447,927.18 = 222,721.86 : x
  2. Step 2: Convert to fraction form
    324,608.70/447,927.18 = 222,721.86/x
  3. Step 3: Cross multiply
    324,608.70x = 447,927.18 × 222,721.86
  4. Step 4: Simplify right side
    324,608.70x = 99,763,174,674.15
  5. Step 5: Solve for x
    x = 99,763,174,674.15/324,608.70
  6. Step 6: Final answer
    x = 307,333.64

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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.