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Finding the Fourth Proportional to 580,382.80, 871,265.40 and 327,864.40

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Solution

The fourth proportional to 580,382.80, 871,265.40 and 327,864.40 is: 492,187.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,382.80 : 871,265.40 = 327,864.40 : x
  2. Step 2: Convert to fraction form
    580,382.80/871,265.40 = 327,864.40/x
  3. Step 3: Cross multiply
    580,382.80x = 871,265.40 × 327,864.40
  4. Step 4: Simplify right side
    580,382.80x = 285,656,907,611.76
  5. Step 5: Solve for x
    x = 285,656,907,611.76/580,382.80
  6. Step 6: Final answer
    x = 492,187.07

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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.