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Finding the Fourth Proportional to 405,171.44, 559,213.95 and 267,108.12

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Solution

The fourth proportional to 405,171.44, 559,213.95 and 267,108.12 is: 368,660.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,171.44 : 559,213.95 = 267,108.12 : x
  2. Step 2: Convert to fraction form
    405,171.44/559,213.95 = 267,108.12/x
  3. Step 3: Cross multiply
    405,171.44x = 559,213.95 × 267,108.12
  4. Step 4: Simplify right side
    405,171.44x = 149,370,586,862.27
  5. Step 5: Solve for x
    x = 149,370,586,862.27/405,171.44
  6. Step 6: Final answer
    x = 368,660.21

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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.