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Finding the Fourth Proportional to 483,068, 666,654.66 and 268,208.09

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Solution

The fourth proportional to 483,068, 666,654.66 and 268,208.09 is: 370,138.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,068 : 666,654.66 = 268,208.09 : x
  2. Step 2: Convert to fraction form
    483,068/666,654.66 = 268,208.09/x
  3. Step 3: Cross multiply
    483,068x = 666,654.66 × 268,208.09
  4. Step 4: Simplify right side
    483,068x = 178,802,173,048.20
  5. Step 5: Solve for x
    x = 178,802,173,048.20/483,068
  6. Step 6: Final answer
    x = 370,138.72

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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.