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Finding the Fourth Proportional to 1,406.36, 1,941 and 846.92

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Solution

The fourth proportional to 1,406.36, 1,941 and 846.92 is: 1,168.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406.36 : 1,941 = 846.92 : x
  2. Step 2: Convert to fraction form
    1,406.36/1,941 = 846.92/x
  3. Step 3: Cross multiply
    1,406.36x = 1,941 × 846.92
  4. Step 4: Simplify right side
    1,406.36x = 1,643,871.72
  5. Step 5: Solve for x
    x = 1,643,871.72/1,406.36
  6. Step 6: Final answer
    x = 1,168.88

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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.