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Finding the Fourth Proportional to 404,992.36, 558,885.94 and 223,716.95

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Solution

The fourth proportional to 404,992.36, 558,885.94 and 223,716.95 is: 308,727.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,992.36 : 558,885.94 = 223,716.95 : x
  2. Step 2: Convert to fraction form
    404,992.36/558,885.94 = 223,716.95/x
  3. Step 3: Cross multiply
    404,992.36x = 558,885.94 × 223,716.95
  4. Step 4: Simplify right side
    404,992.36x = 125,032,257,894.68
  5. Step 5: Solve for x
    x = 125,032,257,894.68/404,992.36
  6. Step 6: Final answer
    x = 308,727.45

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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.