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Finding the Fourth Proportional to 397,598.42, 548,644.86 and 236,422.33

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Solution

The fourth proportional to 397,598.42, 548,644.86 and 236,422.33 is: 326,238.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,598.42 : 548,644.86 = 236,422.33 : x
  2. Step 2: Convert to fraction form
    397,598.42/548,644.86 = 236,422.33/x
  3. Step 3: Cross multiply
    397,598.42x = 548,644.86 × 236,422.33
  4. Step 4: Simplify right side
    397,598.42x = 129,711,894,772.11
  5. Step 5: Solve for x
    x = 129,711,894,772.11/397,598.42
  6. Step 6: Final answer
    x = 326,238.45

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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.