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Finding the Fourth Proportional to 329,644.20, 494,466.30 and 163,756.20

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Solution

The fourth proportional to 329,644.20, 494,466.30 and 163,756.20 is: 245,634.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,644.20 : 494,466.30 = 163,756.20 : x
  2. Step 2: Convert to fraction form
    329,644.20/494,466.30 = 163,756.20/x
  3. Step 3: Cross multiply
    329,644.20x = 494,466.30 × 163,756.20
  4. Step 4: Simplify right side
    329,644.20x = 80,971,922,316.06
  5. Step 5: Solve for x
    x = 80,971,922,316.06/329,644.20
  6. Step 6: Final answer
    x = 245,634.30

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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.