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Finding the Fourth Proportional to 363,414.80, 544,085.40 and 321,942.80

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Solution

The fourth proportional to 363,414.80, 544,085.40 and 321,942.80 is: 481,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,414.80 : 544,085.40 = 321,942.80 : x
  2. Step 2: Convert to fraction form
    363,414.80/544,085.40 = 321,942.80/x
  3. Step 3: Cross multiply
    363,414.80x = 544,085.40 × 321,942.80
  4. Step 4: Simplify right side
    363,414.80x = 175,164,377,115.12
  5. Step 5: Solve for x
    x = 175,164,377,115.12/363,414.80
  6. Step 6: Final answer
    x = 481,995.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.