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Finding the Fourth Proportional to 666,581.89, 999,850.36 and 267,115.41

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Solution

The fourth proportional to 666,581.89, 999,850.36 and 267,115.41 is: 400,664.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,581.89 : 999,850.36 = 267,115.41 : x
  2. Step 2: Convert to fraction form
    666,581.89/999,850.36 = 267,115.41/x
  3. Step 3: Cross multiply
    666,581.89x = 999,850.36 × 267,115.41
  4. Step 4: Simplify right side
    666,581.89x = 267,075,438,850.05
  5. Step 5: Solve for x
    x = 267,075,438,850.05/666,581.89
  6. Step 6: Final answer
    x = 400,664.11

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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.