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Finding the Fourth Proportional to 483,538.80, 667,113 and 276,656.07

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Solution

The fourth proportional to 483,538.80, 667,113 and 276,656.07 is: 381,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,538.80 : 667,113 = 276,656.07 : x
  2. Step 2: Convert to fraction form
    483,538.80/667,113 = 276,656.07/x
  3. Step 3: Cross multiply
    483,538.80x = 667,113 × 276,656.07
  4. Step 4: Simplify right side
    483,538.80x = 184,560,860,825.91
  5. Step 5: Solve for x
    x = 184,560,860,825.91/483,538.80
  6. Step 6: Final answer
    x = 381,687.80

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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.