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Finding the Fourth Proportional to 484,516.52, 668,632.10 and 269,651.46

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Solution

The fourth proportional to 484,516.52, 668,632.10 and 269,651.46 is: 372,118.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,516.52 : 668,632.10 = 269,651.46 : x
  2. Step 2: Convert to fraction form
    484,516.52/668,632.10 = 269,651.46/x
  3. Step 3: Cross multiply
    484,516.52x = 668,632.10 × 269,651.46
  4. Step 4: Simplify right side
    484,516.52x = 180,297,621,967.87
  5. Step 5: Solve for x
    x = 180,297,621,967.87/484,516.52
  6. Step 6: Final answer
    x = 372,118.63

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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.