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Finding the Fourth Proportional to 329,840.20, 494,760.30 and 163,952.20

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Solution

The fourth proportional to 329,840.20, 494,760.30 and 163,952.20 is: 245,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,840.20 : 494,760.30 = 163,952.20 : x
  2. Step 2: Convert to fraction form
    329,840.20/494,760.30 = 163,952.20/x
  3. Step 3: Cross multiply
    329,840.20x = 494,760.30 × 163,952.20
  4. Step 4: Simplify right side
    329,840.20x = 81,117,039,657.66
  5. Step 5: Solve for x
    x = 81,117,039,657.66/329,840.20
  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.