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Finding the Fourth Proportional to 481,253.71, 664,122.06 and 266,389.15

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Solution

The fourth proportional to 481,253.71, 664,122.06 and 266,389.15 is: 367,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,253.71 : 664,122.06 = 266,389.15 : x
  2. Step 2: Convert to fraction form
    481,253.71/664,122.06 = 266,389.15/x
  3. Step 3: Cross multiply
    481,253.71x = 664,122.06 × 266,389.15
  4. Step 4: Simplify right side
    481,253.71x = 176,914,911,059.65
  5. Step 5: Solve for x
    x = 176,914,911,059.65/481,253.71
  6. Step 6: Final answer
    x = 367,612.57

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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.