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Finding the Fourth Proportional to 892,169.92, 1,338,516.96 and 359,416.96

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Solution

The fourth proportional to 892,169.92, 1,338,516.96 and 359,416.96 is: 539,231.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,169.92 : 1,338,516.96 = 359,416.96 : x
  2. Step 2: Convert to fraction form
    892,169.92/1,338,516.96 = 359,416.96/x
  3. Step 3: Cross multiply
    892,169.92x = 1,338,516.96 × 359,416.96
  4. Step 4: Simplify right side
    892,169.92x = 481,085,696,671.64
  5. Step 5: Solve for x
    x = 481,085,696,671.64/892,169.92
  6. Step 6: Final answer
    x = 539,231.02

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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.