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Finding the Fourth Proportional to 483,998.47, 667,934.09 and 266,216.36

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Solution

The fourth proportional to 483,998.47, 667,934.09 and 266,216.36 is: 367,387.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,998.47 : 667,934.09 = 266,216.36 : x
  2. Step 2: Convert to fraction form
    483,998.47/667,934.09 = 266,216.36/x
  3. Step 3: Cross multiply
    483,998.47x = 667,934.09 × 266,216.36
  4. Step 4: Simplify right side
    483,998.47x = 177,814,982,159.71
  5. Step 5: Solve for x
    x = 177,814,982,159.71/483,998.47
  6. Step 6: Final answer
    x = 367,387.49

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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.