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Finding the Fourth Proportional to 481,065.12, 663,859.94 and 266,205.06

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Solution

The fourth proportional to 481,065.12, 663,859.94 and 266,205.06 is: 367,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,065.12 : 663,859.94 = 266,205.06 : x
  2. Step 2: Convert to fraction form
    481,065.12/663,859.94 = 266,205.06/x
  3. Step 3: Cross multiply
    481,065.12x = 663,859.94 × 266,205.06
  4. Step 4: Simplify right side
    481,065.12x = 176,722,873,828.27
  5. Step 5: Solve for x
    x = 176,722,873,828.27/481,065.12
  6. Step 6: Final answer
    x = 367,357.49

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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.