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Finding the Fourth Proportional to 543,363.72, 749,806.20 and 301,634.52

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Solution

The fourth proportional to 543,363.72, 749,806.20 and 301,634.52 is: 416,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,363.72 : 749,806.20 = 301,634.52 : x
  2. Step 2: Convert to fraction form
    543,363.72/749,806.20 = 301,634.52/x
  3. Step 3: Cross multiply
    543,363.72x = 749,806.20 × 301,634.52
  4. Step 4: Simplify right side
    543,363.72x = 226,167,433,230.02
  5. Step 5: Solve for x
    x = 226,167,433,230.02/543,363.72
  6. Step 6: Final answer
    x = 416,235.80

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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.