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Finding the Fourth Proportional to 351,864.82, 485,626.29 and 276,977.14

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Solution

The fourth proportional to 351,864.82, 485,626.29 and 276,977.14 is: 382,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,864.82 : 485,626.29 = 276,977.14 : x
  2. Step 2: Convert to fraction form
    351,864.82/485,626.29 = 276,977.14/x
  3. Step 3: Cross multiply
    351,864.82x = 485,626.29 × 276,977.14
  4. Step 4: Simplify right side
    351,864.82x = 134,507,380,913.01
  5. Step 5: Solve for x
    x = 134,507,380,913.01/351,864.82
  6. Step 6: Final answer
    x = 382,270.05

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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.