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Finding the Fourth Proportional to 341,477.20, 512,676.60 and 217,061.20

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Solution

The fourth proportional to 341,477.20, 512,676.60 and 217,061.20 is: 325,884.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,477.20 : 512,676.60 = 217,061.20 : x
  2. Step 2: Convert to fraction form
    341,477.20/512,676.60 = 217,061.20/x
  3. Step 3: Cross multiply
    341,477.20x = 512,676.60 × 217,061.20
  4. Step 4: Simplify right side
    341,477.20x = 111,282,198,007.92
  5. Step 5: Solve for x
    x = 111,282,198,007.92/341,477.20
  6. Step 6: Final answer
    x = 325,884.71

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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.