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Finding the Fourth Proportional to 321,732.90, 444,044.70 and 178,538.94

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Solution

The fourth proportional to 321,732.90, 444,044.70 and 178,538.94 is: 246,413.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,732.90 : 444,044.70 = 178,538.94 : x
  2. Step 2: Convert to fraction form
    321,732.90/444,044.70 = 178,538.94/x
  3. Step 3: Cross multiply
    321,732.90x = 444,044.70 × 178,538.94
  4. Step 4: Simplify right side
    321,732.90x = 79,279,270,050.62
  5. Step 5: Solve for x
    x = 79,279,270,050.62/321,732.90
  6. Step 6: Final answer
    x = 246,413.31

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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.