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Finding the Fourth Proportional to 397,703.08, 548,621.04 and 236,443.42

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Solution

The fourth proportional to 397,703.08, 548,621.04 and 236,443.42 is: 326,167.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,703.08 : 548,621.04 = 236,443.42 : x
  2. Step 2: Convert to fraction form
    397,703.08/548,621.04 = 236,443.42/x
  3. Step 3: Cross multiply
    397,703.08x = 548,621.04 × 236,443.42
  4. Step 4: Simplify right side
    397,703.08x = 129,717,834,981.56
  5. Step 5: Solve for x
    x = 129,717,834,981.56/397,703.08
  6. Step 6: Final answer
    x = 326,167.54

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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.