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Finding the Fourth Proportional to 322,344.72, 483,516.96 and 100,728.72

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Solution

The fourth proportional to 322,344.72, 483,516.96 and 100,728.72 is: 151,093.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,344.72 : 483,516.96 = 100,728.72 : x
  2. Step 2: Convert to fraction form
    322,344.72/483,516.96 = 100,728.72/x
  3. Step 3: Cross multiply
    322,344.72x = 483,516.96 × 100,728.72
  4. Step 4: Simplify right side
    322,344.72x = 48,704,044,479.09
  5. Step 5: Solve for x
    x = 48,704,044,479.09/322,344.72
  6. Step 6: Final answer
    x = 151,093.04

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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.