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Finding the Fourth Proportional to 329,023.90, 454,053.15 and 178,120.90

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Solution

The fourth proportional to 329,023.90, 454,053.15 and 178,120.90 is: 245,806.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,023.90 : 454,053.15 = 178,120.90 : x
  2. Step 2: Convert to fraction form
    329,023.90/454,053.15 = 178,120.90/x
  3. Step 3: Cross multiply
    329,023.90x = 454,053.15 × 178,120.90
  4. Step 4: Simplify right side
    329,023.90x = 80,876,355,725.84
  5. Step 5: Solve for x
    x = 80,876,355,725.84/329,023.90
  6. Step 6: Final answer
    x = 245,806.93

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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.