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Finding the Fourth Proportional to 1,261.93, 1,892.74 and 337.56

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Solution

The fourth proportional to 1,261.93, 1,892.74 and 337.56 is: 506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.93 : 1,892.74 = 337.56 : x
  2. Step 2: Convert to fraction form
    1,261.93/1,892.74 = 337.56/x
  3. Step 3: Cross multiply
    1,261.93x = 1,892.74 × 337.56
  4. Step 4: Simplify right side
    1,261.93x = 638,913.31
  5. Step 5: Solve for x
    x = 638,913.31/1,261.93
  6. Step 6: Final answer
    x = 506.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.