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Finding the Fourth Proportional to 484,446.42, 668,110.68 and 339,177.78

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Solution

The fourth proportional to 484,446.42, 668,110.68 and 339,177.78 is: 467,767.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,446.42 : 668,110.68 = 339,177.78 : x
  2. Step 2: Convert to fraction form
    484,446.42/668,110.68 = 339,177.78/x
  3. Step 3: Cross multiply
    484,446.42x = 668,110.68 × 339,177.78
  4. Step 4: Simplify right side
    484,446.42x = 226,608,297,236.69
  5. Step 5: Solve for x
    x = 226,608,297,236.69/484,446.42
  6. Step 6: Final answer
    x = 467,767.51

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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.