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Finding the Fourth Proportional to 484,520.54, 667,945.44 and 340,834.64

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Solution

The fourth proportional to 484,520.54, 667,945.44 and 340,834.64 is: 469,864.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,520.54 : 667,945.44 = 340,834.64 : x
  2. Step 2: Convert to fraction form
    484,520.54/667,945.44 = 340,834.64/x
  3. Step 3: Cross multiply
    484,520.54x = 667,945.44 × 340,834.64
  4. Step 4: Simplify right side
    484,520.54x = 227,658,940,242.31
  5. Step 5: Solve for x
    x = 227,658,940,242.31/484,520.54
  6. Step 6: Final answer
    x = 469,864.38

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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.