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Finding the Fourth Proportional to 329,144.40, 493,732.80 and 171,680.40

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Solution

The fourth proportional to 329,144.40, 493,732.80 and 171,680.40 is: 257,529.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,144.40 : 493,732.80 = 171,680.40 : x
  2. Step 2: Convert to fraction form
    329,144.40/493,732.80 = 171,680.40/x
  3. Step 3: Cross multiply
    329,144.40x = 493,732.80 × 171,680.40
  4. Step 4: Simplify right side
    329,144.40x = 84,764,244,597.12
  5. Step 5: Solve for x
    x = 84,764,244,597.12/329,144.40
  6. Step 6: Final answer
    x = 257,529.05

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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.