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Finding the Fourth Proportional to 451,099.71, 622,420.71 and 267,396.20

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Solution

The fourth proportional to 451,099.71, 622,420.71 and 267,396.20 is: 368,949.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,099.71 : 622,420.71 = 267,396.20 : x
  2. Step 2: Convert to fraction form
    451,099.71/622,420.71 = 267,396.20/x
  3. Step 3: Cross multiply
    451,099.71x = 622,420.71 × 267,396.20
  4. Step 4: Simplify right side
    451,099.71x = 166,432,932,655.30
  5. Step 5: Solve for x
    x = 166,432,932,655.30/451,099.71
  6. Step 6: Final answer
    x = 368,949.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.