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Finding the Fourth Proportional to 547,488.37, 821,234.46 and 168,406.53

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Solution

The fourth proportional to 547,488.37, 821,234.46 and 168,406.53 is: 252,610.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,488.37 : 821,234.46 = 168,406.53 : x
  2. Step 2: Convert to fraction form
    547,488.37/821,234.46 = 168,406.53/x
  3. Step 3: Cross multiply
    547,488.37x = 821,234.46 × 168,406.53
  4. Step 4: Simplify right side
    547,488.37x = 138,301,244,882.99
  5. Step 5: Solve for x
    x = 138,301,244,882.99/547,488.37
  6. Step 6: Final answer
    x = 252,610.38

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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.