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Finding the Fourth Proportional to 404,633.91, 558,394.82 and 223,345.88

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Solution

The fourth proportional to 404,633.91, 558,394.82 and 223,345.88 is: 308,217.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,633.91 : 558,394.82 = 223,345.88 : x
  2. Step 2: Convert to fraction form
    404,633.91/558,394.82 = 223,345.88/x
  3. Step 3: Cross multiply
    404,633.91x = 558,394.82 × 223,345.88
  4. Step 4: Simplify right side
    404,633.91x = 124,715,183,681.81
  5. Step 5: Solve for x
    x = 124,715,183,681.81/404,633.91
  6. Step 6: Final answer
    x = 308,217.33

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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.