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Finding the Fourth Proportional to 482,979.65, 666,478.49 and 268,102.73

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Solution

The fourth proportional to 482,979.65, 666,478.49 and 268,102.73 is: 369,963.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,979.65 : 666,478.49 = 268,102.73 : x
  2. Step 2: Convert to fraction form
    482,979.65/666,478.49 = 268,102.73/x
  3. Step 3: Cross multiply
    482,979.65x = 666,478.49 × 268,102.73
  4. Step 4: Simplify right side
    482,979.65x = 178,684,702,980.96
  5. Step 5: Solve for x
    x = 178,684,702,980.96/482,979.65
  6. Step 6: Final answer
    x = 369,963.22

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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.