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Finding the Fourth Proportional to 1,324.04, 1,826.84 and 1,009.22

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Solution

The fourth proportional to 1,324.04, 1,826.84 and 1,009.22 is: 1,392.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.04 : 1,826.84 = 1,009.22 : x
  2. Step 2: Convert to fraction form
    1,324.04/1,826.84 = 1,009.22/x
  3. Step 3: Cross multiply
    1,324.04x = 1,826.84 × 1,009.22
  4. Step 4: Simplify right side
    1,324.04x = 1,843,676.85
  5. Step 5: Solve for x
    x = 1,843,676.85/1,324.04
  6. Step 6: Final answer
    x = 1,392.47

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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.