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Finding the Fourth Proportional to 481,161.79, 663,929.28 and 277,172.86

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Solution

The fourth proportional to 481,161.79, 663,929.28 and 277,172.86 is: 382,455.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,161.79 : 663,929.28 = 277,172.86 : x
  2. Step 2: Convert to fraction form
    481,161.79/663,929.28 = 277,172.86/x
  3. Step 3: Cross multiply
    481,161.79x = 663,929.28 × 277,172.86
  4. Step 4: Simplify right side
    481,161.79x = 184,023,177,375.34
  5. Step 5: Solve for x
    x = 184,023,177,375.34/481,161.79
  6. Step 6: Final answer
    x = 382,455.92

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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.