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Finding the Fourth Proportional to 1,092, 1,506.96 and 626.56

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Solution

The fourth proportional to 1,092, 1,506.96 and 626.56 is: 864.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092 : 1,506.96 = 626.56 : x
  2. Step 2: Convert to fraction form
    1,092/1,506.96 = 626.56/x
  3. Step 3: Cross multiply
    1,092x = 1,506.96 × 626.56
  4. Step 4: Simplify right side
    1,092x = 944,200.86
  5. Step 5: Solve for x
    x = 944,200.86/1,092
  6. Step 6: Final answer
    x = 864.65

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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.