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Finding the Fourth Proportional to 329,231.66, 454,339.70 and 178,328.66

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Solution

The fourth proportional to 329,231.66, 454,339.70 and 178,328.66 is: 246,093.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,231.66 : 454,339.70 = 178,328.66 : x
  2. Step 2: Convert to fraction form
    329,231.66/454,339.70 = 178,328.66/x
  3. Step 3: Cross multiply
    329,231.66x = 454,339.70 × 178,328.66
  4. Step 4: Simplify right side
    329,231.66x = 81,021,789,885.80
  5. Step 5: Solve for x
    x = 81,021,789,885.80/329,231.66
  6. Step 6: Final answer
    x = 246,093.56

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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.