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Finding the Fourth Proportional to 276,724.40, 415,086.60 and 251,792.60

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Solution

The fourth proportional to 276,724.40, 415,086.60 and 251,792.60 is: 377,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,724.40 : 415,086.60 = 251,792.60 : x
  2. Step 2: Convert to fraction form
    276,724.40/415,086.60 = 251,792.60/x
  3. Step 3: Cross multiply
    276,724.40x = 415,086.60 × 251,792.60
  4. Step 4: Simplify right side
    276,724.40x = 104,515,734,239.16
  5. Step 5: Solve for x
    x = 104,515,734,239.16/276,724.40
  6. Step 6: Final answer
    x = 377,688.90

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1.5x scale

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.