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Finding the Fourth Proportional to 1,093.18, 1,507.22 and 743.26

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Solution

The fourth proportional to 1,093.18, 1,507.22 and 743.26 is: 1,024.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.18 : 1,507.22 = 743.26 : x
  2. Step 2: Convert to fraction form
    1,093.18/1,507.22 = 743.26/x
  3. Step 3: Cross multiply
    1,093.18x = 1,507.22 × 743.26
  4. Step 4: Simplify right side
    1,093.18x = 1,120,256.34
  5. Step 5: Solve for x
    x = 1,120,256.34/1,093.18
  6. Step 6: Final answer
    x = 1,024.77

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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.