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Finding the Fourth Proportional to 404,668.26, 558,438.95 and 223,379.93

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Solution

The fourth proportional to 404,668.26, 558,438.95 and 223,379.93 is: 308,262.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,668.26 : 558,438.95 = 223,379.93 : x
  2. Step 2: Convert to fraction form
    404,668.26/558,438.95 = 223,379.93/x
  3. Step 3: Cross multiply
    404,668.26x = 558,438.95 × 223,379.93
  4. Step 4: Simplify right side
    404,668.26x = 124,744,049,651.18
  5. Step 5: Solve for x
    x = 124,744,049,651.18/404,668.26
  6. Step 6: Final answer
    x = 308,262.50

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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.