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Finding the Fourth Proportional to 431,960.20, 647,709.90 and 182,360.20

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Solution

The fourth proportional to 431,960.20, 647,709.90 and 182,360.20 is: 273,443.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,960.20 : 647,709.90 = 182,360.20 : x
  2. Step 2: Convert to fraction form
    431,960.20/647,709.90 = 182,360.20/x
  3. Step 3: Cross multiply
    431,960.20x = 647,709.90 × 182,360.20
  4. Step 4: Simplify right side
    431,960.20x = 118,116,506,905.98
  5. Step 5: Solve for x
    x = 118,116,506,905.98/431,960.20
  6. Step 6: Final answer
    x = 273,443.03

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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.