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Finding the Fourth Proportional to 483,912, 667,798.56 and 271,944

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Solution

The fourth proportional to 483,912, 667,798.56 and 271,944 is: 375,282.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,912 : 667,798.56 = 271,944 : x
  2. Step 2: Convert to fraction form
    483,912/667,798.56 = 271,944/x
  3. Step 3: Cross multiply
    483,912x = 667,798.56 × 271,944
  4. Step 4: Simplify right side
    483,912x = 181,603,811,600.64
  5. Step 5: Solve for x
    x = 181,603,811,600.64/483,912
  6. Step 6: Final answer
    x = 375,282.72

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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.