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Finding the Fourth Proportional to 580,930.20, 871,371.60 and 201,936.86

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Solution

The fourth proportional to 580,930.20, 871,371.60 and 201,936.86 is: 302,897.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,930.20 : 871,371.60 = 201,936.86 : x
  2. Step 2: Convert to fraction form
    580,930.20/871,371.60 = 201,936.86/x
  3. Step 3: Cross multiply
    580,930.20x = 871,371.60 × 201,936.86
  4. Step 4: Simplify right side
    580,930.20x = 175,962,044,797.18
  5. Step 5: Solve for x
    x = 175,962,044,797.18/580,930.20
  6. Step 6: Final answer
    x = 302,897.05

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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.