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Finding the Fourth Proportional to 484,994.73, 669,292.94 and 281,163.83

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Solution

The fourth proportional to 484,994.73, 669,292.94 and 281,163.83 is: 388,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,994.73 : 669,292.94 = 281,163.83 : x
  2. Step 2: Convert to fraction form
    484,994.73/669,292.94 = 281,163.83/x
  3. Step 3: Cross multiply
    484,994.73x = 669,292.94 × 281,163.83
  4. Step 4: Simplify right side
    484,994.73x = 188,180,963,758.81
  5. Step 5: Solve for x
    x = 188,180,963,758.81/484,994.73
  6. Step 6: Final answer
    x = 388,006.20

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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.