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Finding the Fourth Proportional to 329,651.76, 454,919.62 and 178,748.76

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Solution

The fourth proportional to 329,651.76, 454,919.62 and 178,748.76 is: 246,673.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,651.76 : 454,919.62 = 178,748.76 : x
  2. Step 2: Convert to fraction form
    329,651.76/454,919.62 = 178,748.76/x
  3. Step 3: Cross multiply
    329,651.76x = 454,919.62 × 178,748.76
  4. Step 4: Simplify right side
    329,651.76x = 81,316,317,974.67
  5. Step 5: Solve for x
    x = 81,316,317,974.67/329,651.76
  6. Step 6: Final answer
    x = 246,673.39

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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.