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Finding the Fourth Proportional to 1,468.24, 2,026.38 and 879.28

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Solution

The fourth proportional to 1,468.24, 2,026.38 and 879.28 is: 1,213.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.24 : 2,026.38 = 879.28 : x
  2. Step 2: Convert to fraction form
    1,468.24/2,026.38 = 879.28/x
  3. Step 3: Cross multiply
    1,468.24x = 2,026.38 × 879.28
  4. Step 4: Simplify right side
    1,468.24x = 1,781,755.41
  5. Step 5: Solve for x
    x = 1,781,755.41/1,468.24
  6. Step 6: Final answer
    x = 1,213.53

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1.5x scale

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.