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Finding the Fourth Proportional to 482,976, 666,473.47 and 268,099.17

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Solution

The fourth proportional to 482,976, 666,473.47 and 268,099.17 is: 369,958.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,976 : 666,473.47 = 268,099.17 : x
  2. Step 2: Convert to fraction form
    482,976/666,473.47 = 268,099.17/x
  3. Step 3: Cross multiply
    482,976x = 666,473.47 × 268,099.17
  4. Step 4: Simplify right side
    482,976x = 178,680,980,964.50
  5. Step 5: Solve for x
    x = 178,680,980,964.50/482,976
  6. Step 6: Final answer
    x = 369,958.30

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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.