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Finding the Fourth Proportional to 1,334.94, 1,844.55 and 961.26

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Solution

The fourth proportional to 1,334.94, 1,844.55 and 961.26 is: 1,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.94 : 1,844.55 = 961.26 : x
  2. Step 2: Convert to fraction form
    1,334.94/1,844.55 = 961.26/x
  3. Step 3: Cross multiply
    1,334.94x = 1,844.55 × 961.26
  4. Step 4: Simplify right side
    1,334.94x = 1,773,092.13
  5. Step 5: Solve for x
    x = 1,773,092.13/1,334.94
  6. Step 6: Final answer
    x = 1,328.22

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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.