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Finding the Fourth Proportional to 881,611.60, 1,325,236.20 and 819,209.20

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Solution

The fourth proportional to 881,611.60, 1,325,236.20 and 819,209.20 is: 1,231,433.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,611.60 : 1,325,236.20 = 819,209.20 : x
  2. Step 2: Convert to fraction form
    881,611.60/1,325,236.20 = 819,209.20/x
  3. Step 3: Cross multiply
    881,611.60x = 1,325,236.20 × 819,209.20
  4. Step 4: Simplify right side
    881,611.60x = 1,085,645,687,213.04
  5. Step 5: Solve for x
    x = 1,085,645,687,213.04/881,611.60
  6. Step 6: Final answer
    x = 1,231,433.08

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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.