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Finding the Fourth Proportional to 404,343.32, 557,992.21 and 223,066.53

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Solution

The fourth proportional to 404,343.32, 557,992.21 and 223,066.53 is: 307,830.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,343.32 : 557,992.21 = 223,066.53 : x
  2. Step 2: Convert to fraction form
    404,343.32/557,992.21 = 223,066.53/x
  3. Step 3: Cross multiply
    404,343.32x = 557,992.21 × 223,066.53
  4. Step 4: Simplify right side
    404,343.32x = 124,469,384,936.40
  5. Step 5: Solve for x
    x = 124,469,384,936.40/404,343.32
  6. Step 6: Final answer
    x = 307,830.95

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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.