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Finding the Fourth Proportional to 398,658.52, 550,195.44 and 226,602.34

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Solution

The fourth proportional to 398,658.52, 550,195.44 and 226,602.34 is: 312,737.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,658.52 : 550,195.44 = 226,602.34 : x
  2. Step 2: Convert to fraction form
    398,658.52/550,195.44 = 226,602.34/x
  3. Step 3: Cross multiply
    398,658.52x = 550,195.44 × 226,602.34
  4. Step 4: Simplify right side
    398,658.52x = 124,675,574,161.33
  5. Step 5: Solve for x
    x = 124,675,574,161.33/398,658.52
  6. Step 6: Final answer
    x = 312,737.76

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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.