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Finding the Fourth Proportional to 422,029.38, 582,241.53 and 276,915.27

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Solution

The fourth proportional to 422,029.38, 582,241.53 and 276,915.27 is: 382,038.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,029.38 : 582,241.53 = 276,915.27 : x
  2. Step 2: Convert to fraction form
    422,029.38/582,241.53 = 276,915.27/x
  3. Step 3: Cross multiply
    422,029.38x = 582,241.53 × 276,915.27
  4. Step 4: Simplify right side
    422,029.38x = 161,231,570,485.16
  5. Step 5: Solve for x
    x = 161,231,570,485.16/422,029.38
  6. Step 6: Final answer
    x = 382,038.74

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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.