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Finding the Fourth Proportional to 483,539.80, 667,114.38 and 276,657.07

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Solution

The fourth proportional to 483,539.80, 667,114.38 and 276,657.07 is: 381,689.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,539.80 : 667,114.38 = 276,657.07 : x
  2. Step 2: Convert to fraction form
    483,539.80/667,114.38 = 276,657.07/x
  3. Step 3: Cross multiply
    483,539.80x = 667,114.38 × 276,657.07
  4. Step 4: Simplify right side
    483,539.80x = 184,561,909,725.67
  5. Step 5: Solve for x
    x = 184,561,909,725.67/483,539.80
  6. Step 6: Final answer
    x = 381,689.18

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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.