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Finding the Fourth Proportional to 394,595.51, 544,595.13 and 222,548.81

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Solution

The fourth proportional to 394,595.51, 544,595.13 and 222,548.81 is: 307,147.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,595.51 : 544,595.13 = 222,548.81 : x
  2. Step 2: Convert to fraction form
    394,595.51/544,595.13 = 222,548.81/x
  3. Step 3: Cross multiply
    394,595.51x = 544,595.13 × 222,548.81
  4. Step 4: Simplify right side
    394,595.51x = 121,198,995,390.32
  5. Step 5: Solve for x
    x = 121,198,995,390.32/394,595.51
  6. Step 6: Final answer
    x = 307,147.43

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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.