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Finding the Fourth Proportional to 484,696.13, 727,044.19 and 218,145.17

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Solution

The fourth proportional to 484,696.13, 727,044.19 and 218,145.17 is: 327,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,696.13 : 727,044.19 = 218,145.17 : x
  2. Step 2: Convert to fraction form
    484,696.13/727,044.19 = 218,145.17/x
  3. Step 3: Cross multiply
    484,696.13x = 727,044.19 × 218,145.17
  4. Step 4: Simplify right side
    484,696.13x = 158,601,179,697.31
  5. Step 5: Solve for x
    x = 158,601,179,697.31/484,696.13
  6. Step 6: Final answer
    x = 327,217.76

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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.