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Finding the Fourth Proportional to 329,079.28, 454,129.80 and 178,176.28

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Solution

The fourth proportional to 329,079.28, 454,129.80 and 178,176.28 is: 245,883.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,079.28 : 454,129.80 = 178,176.28 : x
  2. Step 2: Convert to fraction form
    329,079.28/454,129.80 = 178,176.28/x
  3. Step 3: Cross multiply
    329,079.28x = 454,129.80 × 178,176.28
  4. Step 4: Simplify right side
    329,079.28x = 80,915,158,401.14
  5. Step 5: Solve for x
    x = 80,915,158,401.14/329,079.28
  6. Step 6: Final answer
    x = 245,883.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.