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Finding the Fourth Proportional to 484,012.49, 667,938.56 and 266,243.47

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Solution

The fourth proportional to 484,012.49, 667,938.56 and 266,243.47 is: 367,416.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,012.49 : 667,938.56 = 266,243.47 : x
  2. Step 2: Convert to fraction form
    484,012.49/667,938.56 = 266,243.47/x
  3. Step 3: Cross multiply
    484,012.49x = 667,938.56 × 266,243.47
  4. Step 4: Simplify right side
    484,012.49x = 177,834,278,956.97
  5. Step 5: Solve for x
    x = 177,834,278,956.97/484,012.49
  6. Step 6: Final answer
    x = 367,416.72

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1.5x scale

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.