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Finding the Fourth Proportional to 276,364.60, 414,546.90 and 191,946.40

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Solution

The fourth proportional to 276,364.60, 414,546.90 and 191,946.40 is: 287,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,364.60 : 414,546.90 = 191,946.40 : x
  2. Step 2: Convert to fraction form
    276,364.60/414,546.90 = 191,946.40/x
  3. Step 3: Cross multiply
    276,364.60x = 414,546.90 × 191,946.40
  4. Step 4: Simplify right side
    276,364.60x = 79,570,785,086.16
  5. Step 5: Solve for x
    x = 79,570,785,086.16/276,364.60
  6. Step 6: Final answer
    x = 287,919.60

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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.