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Finding the Fourth Proportional to 621,876.56, 932,989.79 and 222,574.10

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Solution

The fourth proportional to 621,876.56, 932,989.79 and 222,574.10 is: 333,923.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,876.56 : 932,989.79 = 222,574.10 : x
  2. Step 2: Convert to fraction form
    621,876.56/932,989.79 = 222,574.10/x
  3. Step 3: Cross multiply
    621,876.56x = 932,989.79 × 222,574.10
  4. Step 4: Simplify right side
    621,876.56x = 207,659,358,709.93
  5. Step 5: Solve for x
    x = 207,659,358,709.93/621,876.56
  6. Step 6: Final answer
    x = 333,923.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.