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Finding the Fourth Proportional to 404,651.16, 558,418.52 and 223,363.05

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Solution

The fourth proportional to 404,651.16, 558,418.52 and 223,363.05 is: 308,240.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,651.16 : 558,418.52 = 223,363.05 : x
  2. Step 2: Convert to fraction form
    404,651.16/558,418.52 = 223,363.05/x
  3. Step 3: Cross multiply
    404,651.16x = 558,418.52 × 223,363.05
  4. Step 4: Simplify right side
    404,651.16x = 124,730,060,453.19
  5. Step 5: Solve for x
    x = 124,730,060,453.19/404,651.16
  6. Step 6: Final answer
    x = 308,240.95

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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.