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Finding the Fourth Proportional to 321,907.77, 444,229.52 and 178,664.13

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Solution

The fourth proportional to 321,907.77, 444,229.52 and 178,664.13 is: 246,554.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,907.77 : 444,229.52 = 178,664.13 : x
  2. Step 2: Convert to fraction form
    321,907.77/444,229.52 = 178,664.13/x
  3. Step 3: Cross multiply
    321,907.77x = 444,229.52 × 178,664.13
  4. Step 4: Simplify right side
    321,907.77x = 79,367,879,817.80
  5. Step 5: Solve for x
    x = 79,367,879,817.80/321,907.77
  6. Step 6: Final answer
    x = 246,554.72

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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.