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Finding the Fourth Proportional to 321,791.16, 444,050.46 and 178,542.12

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Solution

The fourth proportional to 321,791.16, 444,050.46 and 178,542.12 is: 246,376.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,791.16 : 444,050.46 = 178,542.12 : x
  2. Step 2: Convert to fraction form
    321,791.16/444,050.46 = 178,542.12/x
  3. Step 3: Cross multiply
    321,791.16x = 444,050.46 × 178,542.12
  4. Step 4: Simplify right side
    321,791.16x = 79,281,710,515.38
  5. Step 5: Solve for x
    x = 79,281,710,515.38/321,791.16
  6. Step 6: Final answer
    x = 246,376.28

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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.