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Finding the Fourth Proportional to 483,928.17, 667,803.40 and 266,134.97

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Solution

The fourth proportional to 483,928.17, 667,803.40 and 266,134.97 is: 367,256.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,928.17 : 667,803.40 = 266,134.97 : x
  2. Step 2: Convert to fraction form
    483,928.17/667,803.40 = 266,134.97/x
  3. Step 3: Cross multiply
    483,928.17x = 667,803.40 × 266,134.97
  4. Step 4: Simplify right side
    483,928.17x = 177,725,833,820.54
  5. Step 5: Solve for x
    x = 177,725,833,820.54/483,928.17
  6. Step 6: Final answer
    x = 367,256.64

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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.