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Finding the Fourth Proportional to 403,974.88, 557,510.32 and 222,685.92

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Solution

The fourth proportional to 403,974.88, 557,510.32 and 222,685.92 is: 307,320.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,974.88 : 557,510.32 = 222,685.92 : x
  2. Step 2: Convert to fraction form
    403,974.88/557,510.32 = 222,685.92/x
  3. Step 3: Cross multiply
    403,974.88x = 557,510.32 × 222,685.92
  4. Step 4: Simplify right side
    403,974.88x = 124,149,698,518.69
  5. Step 5: Solve for x
    x = 124,149,698,518.69/403,974.88
  6. Step 6: Final answer
    x = 307,320.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.