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Finding the Fourth Proportional to 404,640.53, 558,403.97 and 223,352.51

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Solution

The fourth proportional to 404,640.53, 558,403.97 and 223,352.51 is: 308,226.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,640.53 : 558,403.97 = 223,352.51 : x
  2. Step 2: Convert to fraction form
    404,640.53/558,403.97 = 223,352.51/x
  3. Step 3: Cross multiply
    404,640.53x = 558,403.97 × 223,352.51
  4. Step 4: Simplify right side
    404,640.53x = 124,720,928,293.47
  5. Step 5: Solve for x
    x = 124,720,928,293.47/404,640.53
  6. Step 6: Final answer
    x = 308,226.49

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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.