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Finding the Fourth Proportional to 570,558.92, 855,921.83 and 171,231.25

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Solution

The fourth proportional to 570,558.92, 855,921.83 and 171,231.25 is: 256,871.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,558.92 : 855,921.83 = 171,231.25 : x
  2. Step 2: Convert to fraction form
    570,558.92/855,921.83 = 171,231.25/x
  3. Step 3: Cross multiply
    570,558.92x = 855,921.83 × 171,231.25
  4. Step 4: Simplify right side
    570,558.92x = 146,560,561,857.23
  5. Step 5: Solve for x
    x = 146,560,561,857.23/570,558.92
  6. Step 6: Final answer
    x = 256,871.91

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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.