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Finding the Fourth Proportional to 404,802.12, 558,563.94 and 235,006.68

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Solution

The fourth proportional to 404,802.12, 558,563.94 and 235,006.68 is: 324,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,802.12 : 558,563.94 = 235,006.68 : x
  2. Step 2: Convert to fraction form
    404,802.12/558,563.94 = 235,006.68/x
  3. Step 3: Cross multiply
    404,802.12x = 558,563.94 × 235,006.68
  4. Step 4: Simplify right side
    404,802.12x = 131,266,257,107.12
  5. Step 5: Solve for x
    x = 131,266,257,107.12/404,802.12
  6. Step 6: Final answer
    x = 324,272.65

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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.