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Finding the Fourth Proportional to 404,702.55, 558,494.04 and 223,414.57

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Solution

The fourth proportional to 404,702.55, 558,494.04 and 223,414.57 is: 308,314.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,702.55 : 558,494.04 = 223,414.57 : x
  2. Step 2: Convert to fraction form
    404,702.55/558,494.04 = 223,414.57/x
  3. Step 3: Cross multiply
    404,702.55x = 558,494.04 × 223,414.57
  4. Step 4: Simplify right side
    404,702.55x = 124,775,707,330.09
  5. Step 5: Solve for x
    x = 124,775,707,330.09/404,702.55
  6. Step 6: Final answer
    x = 308,314.61

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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.