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Finding the Fourth Proportional to 746.41, 1,118.92 and 356.22

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Solution

The fourth proportional to 746.41, 1,118.92 and 356.22 is: 534.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.41 : 1,118.92 = 356.22 : x
  2. Step 2: Convert to fraction form
    746.41/1,118.92 = 356.22/x
  3. Step 3: Cross multiply
    746.41x = 1,118.92 × 356.22
  4. Step 4: Simplify right side
    746.41x = 398,581.68
  5. Step 5: Solve for x
    x = 398,581.68/746.41
  6. Step 6: Final answer
    x = 534.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.