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Finding the Fourth Proportional to 403,889.96, 557,345.41 and 222,601.34

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Solution

The fourth proportional to 403,889.96, 557,345.41 and 222,601.34 is: 307,177.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,889.96 : 557,345.41 = 222,601.34 : x
  2. Step 2: Convert to fraction form
    403,889.96/557,345.41 = 222,601.34/x
  3. Step 3: Cross multiply
    403,889.96x = 557,345.41 × 222,601.34
  4. Step 4: Simplify right side
    403,889.96x = 124,065,835,945.71
  5. Step 5: Solve for x
    x = 124,065,835,945.71/403,889.96
  6. Step 6: Final answer
    x = 307,177.32

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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.