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Finding the Fourth Proportional to 404,711.12, 558,502.16 and 223,423.29

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Solution

The fourth proportional to 404,711.12, 558,502.16 and 223,423.29 is: 308,324.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,711.12 : 558,502.16 = 223,423.29 : x
  2. Step 2: Convert to fraction form
    404,711.12/558,502.16 = 223,423.29/x
  3. Step 3: Cross multiply
    404,711.12x = 558,502.16 × 223,423.29
  4. Step 4: Simplify right side
    404,711.12x = 124,782,388,942.19
  5. Step 5: Solve for x
    x = 124,782,388,942.19/404,711.12
  6. Step 6: Final answer
    x = 308,324.59

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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.