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Finding the Fourth Proportional to 1,468.91, 2,026.91 and 879.32

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Solution

The fourth proportional to 1,468.91, 2,026.91 and 879.32 is: 1,213.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.91 : 2,026.91 = 879.32 : x
  2. Step 2: Convert to fraction form
    1,468.91/2,026.91 = 879.32/x
  3. Step 3: Cross multiply
    1,468.91x = 2,026.91 × 879.32
  4. Step 4: Simplify right side
    1,468.91x = 1,782,298.10
  5. Step 5: Solve for x
    x = 1,782,298.10/1,468.91
  6. Step 6: Final answer
    x = 1,213.35

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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.