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Finding the Fourth Proportional to 580,980.80, 871,780.80 and 226,006.40

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Solution

The fourth proportional to 580,980.80, 871,780.80 and 226,006.40 is: 339,130.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,980.80 : 871,780.80 = 226,006.40 : x
  2. Step 2: Convert to fraction form
    580,980.80/871,780.80 = 226,006.40/x
  3. Step 3: Cross multiply
    580,980.80x = 871,780.80 × 226,006.40
  4. Step 4: Simplify right side
    580,980.80x = 197,028,040,197.12
  5. Step 5: Solve for x
    x = 197,028,040,197.12/580,980.80
  6. Step 6: Final answer
    x = 339,130.04

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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.