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Finding the Fourth Proportional to 404,558.74, 558,272.14 and 232,355.58

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Solution

The fourth proportional to 404,558.74, 558,272.14 and 232,355.58 is: 320,639.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,558.74 : 558,272.14 = 232,355.58 : x
  2. Step 2: Convert to fraction form
    404,558.74/558,272.14 = 232,355.58/x
  3. Step 3: Cross multiply
    404,558.74x = 558,272.14 × 232,355.58
  4. Step 4: Simplify right side
    404,558.74x = 129,717,646,887.54
  5. Step 5: Solve for x
    x = 129,717,646,887.54/404,558.74
  6. Step 6: Final answer
    x = 320,639.83

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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.