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Finding the Fourth Proportional to 367,420.98, 550,991.58 and 217,703.52

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Solution

The fourth proportional to 367,420.98, 550,991.58 and 217,703.52 is: 326,472.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,420.98 : 550,991.58 = 217,703.52 : x
  2. Step 2: Convert to fraction form
    367,420.98/550,991.58 = 217,703.52/x
  3. Step 3: Cross multiply
    367,420.98x = 550,991.58 × 217,703.52
  4. Step 4: Simplify right side
    367,420.98x = 119,952,806,456.36
  5. Step 5: Solve for x
    x = 119,952,806,456.36/367,420.98
  6. Step 6: Final answer
    x = 326,472.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.