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Finding the Fourth Proportional to 483,685.68, 667,435.50 and 268,791.06

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Solution

The fourth proportional to 483,685.68, 667,435.50 and 268,791.06 is: 370,903.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,685.68 : 667,435.50 = 268,791.06 : x
  2. Step 2: Convert to fraction form
    483,685.68/667,435.50 = 268,791.06/x
  3. Step 3: Cross multiply
    483,685.68x = 667,435.50 × 268,791.06
  4. Step 4: Simplify right side
    483,685.68x = 179,400,695,526.63
  5. Step 5: Solve for x
    x = 179,400,695,526.63/483,685.68
  6. Step 6: Final answer
    x = 370,903.47

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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.