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Finding the Fourth Proportional to 558,940.25, 838,424.16 and 203,954.19

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Solution

The fourth proportional to 558,940.25, 838,424.16 and 203,954.19 is: 305,936.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,940.25 : 838,424.16 = 203,954.19 : x
  2. Step 2: Convert to fraction form
    558,940.25/838,424.16 = 203,954.19/x
  3. Step 3: Cross multiply
    558,940.25x = 838,424.16 × 203,954.19
  4. Step 4: Simplify right side
    558,940.25x = 171,000,120,429.23
  5. Step 5: Solve for x
    x = 171,000,120,429.23/558,940.25
  6. Step 6: Final answer
    x = 305,936.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.