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Finding the Fourth Proportional to 329,620.84, 454,874.34 and 178,716.76

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Solution

The fourth proportional to 329,620.84, 454,874.34 and 178,716.76 is: 246,627.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,620.84 : 454,874.34 = 178,716.76 : x
  2. Step 2: Convert to fraction form
    329,620.84/454,874.34 = 178,716.76/x
  3. Step 3: Cross multiply
    329,620.84x = 454,874.34 × 178,716.76
  4. Step 4: Simplify right side
    329,620.84x = 81,293,668,251.94
  5. Step 5: Solve for x
    x = 81,293,668,251.94/329,620.84
  6. Step 6: Final answer
    x = 246,627.82

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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.