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Finding the Fourth Proportional to 484,722.32, 726,755.43 and 169,007

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Solution

The fourth proportional to 484,722.32, 726,755.43 and 169,007 is: 253,396.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,722.32 : 726,755.43 = 169,007 : x
  2. Step 2: Convert to fraction form
    484,722.32/726,755.43 = 169,007/x
  3. Step 3: Cross multiply
    484,722.32x = 726,755.43 × 169,007
  4. Step 4: Simplify right side
    484,722.32x = 122,826,754,958.01
  5. Step 5: Solve for x
    x = 122,826,754,958.01/484,722.32
  6. Step 6: Final answer
    x = 253,396.12

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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.