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Finding the Fourth Proportional to 325,560, 490,558.36 and 267,692

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Solution

The fourth proportional to 325,560, 490,558.36 and 267,692 is: 403,362.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,560 : 490,558.36 = 267,692 : x
  2. Step 2: Convert to fraction form
    325,560/490,558.36 = 267,692/x
  3. Step 3: Cross multiply
    325,560x = 490,558.36 × 267,692
  4. Step 4: Simplify right side
    325,560x = 131,318,548,505.12
  5. Step 5: Solve for x
    x = 131,318,548,505.12/325,560
  6. Step 6: Final answer
    x = 403,362.05

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.