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Finding the Fourth Proportional to 397,637.44, 548,735.40 and 236,488.95

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Solution

The fourth proportional to 397,637.44, 548,735.40 and 236,488.95 is: 326,352.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,637.44 : 548,735.40 = 236,488.95 : x
  2. Step 2: Convert to fraction form
    397,637.44/548,735.40 = 236,488.95/x
  3. Step 3: Cross multiply
    397,637.44x = 548,735.40 × 236,488.95
  4. Step 4: Simplify right side
    397,637.44x = 129,769,858,573.83
  5. Step 5: Solve for x
    x = 129,769,858,573.83/397,637.44
  6. Step 6: Final answer
    x = 326,352.22

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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.