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Finding the Fourth Proportional to 274,544.20, 411,816.30 and 163,952.20

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Solution

The fourth proportional to 274,544.20, 411,816.30 and 163,952.20 is: 245,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,544.20 : 411,816.30 = 163,952.20 : x
  2. Step 2: Convert to fraction form
    274,544.20/411,816.30 = 163,952.20/x
  3. Step 3: Cross multiply
    274,544.20x = 411,816.30 × 163,952.20
  4. Step 4: Simplify right side
    274,544.20x = 67,518,188,380.86
  5. Step 5: Solve for x
    x = 67,518,188,380.86/274,544.20
  6. Step 6: Final answer
    x = 245,928.30

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Double scale
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Similar ratio
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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.