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Finding the Fourth Proportional to 581,479.20, 871,570.80 and 226,375.20

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Solution

The fourth proportional to 581,479.20, 871,570.80 and 226,375.20 is: 339,310.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,479.20 : 871,570.80 = 226,375.20 : x
  2. Step 2: Convert to fraction form
    581,479.20/871,570.80 = 226,375.20/x
  3. Step 3: Cross multiply
    581,479.20x = 871,570.80 × 226,375.20
  4. Step 4: Simplify right side
    581,479.20x = 197,302,014,164.16
  5. Step 5: Solve for x
    x = 197,302,014,164.16/581,479.20
  6. Step 6: Final answer
    x = 339,310.53

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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.