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Finding the Fourth Proportional to 581,641.20, 871,813.80 and 226,537.20

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Solution

The fourth proportional to 581,641.20, 871,813.80 and 226,537.20 is: 339,553.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,641.20 : 871,813.80 = 226,537.20 : x
  2. Step 2: Convert to fraction form
    581,641.20/871,813.80 = 226,537.20/x
  3. Step 3: Cross multiply
    581,641.20x = 871,813.80 × 226,537.20
  4. Step 4: Simplify right side
    581,641.20x = 197,498,257,173.36
  5. Step 5: Solve for x
    x = 197,498,257,173.36/581,641.20
  6. Step 6: Final answer
    x = 339,553.42

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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.