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Finding the Fourth Proportional to 887,062.10, 1,330,593.15 and 818,633.30

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Solution

The fourth proportional to 887,062.10, 1,330,593.15 and 818,633.30 is: 1,227,949.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,062.10 : 1,330,593.15 = 818,633.30 : x
  2. Step 2: Convert to fraction form
    887,062.10/1,330,593.15 = 818,633.30/x
  3. Step 3: Cross multiply
    887,062.10x = 1,330,593.15 × 818,633.30
  4. Step 4: Simplify right side
    887,062.10x = 1,089,267,861,341.90
  5. Step 5: Solve for x
    x = 1,089,267,861,341.90/887,062.10
  6. Step 6: Final answer
    x = 1,227,949.95

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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.