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Finding the Fourth Proportional to 484,072.97, 668,000.07 and 266,267.81

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Solution

The fourth proportional to 484,072.97, 668,000.07 and 266,267.81 is: 367,438.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,072.97 : 668,000.07 = 266,267.81 : x
  2. Step 2: Convert to fraction form
    484,072.97/668,000.07 = 266,267.81/x
  3. Step 3: Cross multiply
    484,072.97x = 668,000.07 × 266,267.81
  4. Step 4: Simplify right side
    484,072.97x = 177,866,912,378.75
  5. Step 5: Solve for x
    x = 177,866,912,378.75/484,072.97
  6. Step 6: Final answer
    x = 367,438.23

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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.