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Finding the Fourth Proportional to 404,706.65, 558,495.99 and 223,418.83

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Solution

The fourth proportional to 404,706.65, 558,495.99 and 223,418.83 is: 308,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,706.65 : 558,495.99 = 223,418.83 : x
  2. Step 2: Convert to fraction form
    404,706.65/558,495.99 = 223,418.83/x
  3. Step 3: Cross multiply
    404,706.65x = 558,495.99 × 223,418.83
  4. Step 4: Simplify right side
    404,706.65x = 124,778,517,853.01
  5. Step 5: Solve for x
    x = 124,778,517,853.01/404,706.65
  6. Step 6: Final answer
    x = 308,318.43

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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.