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Finding the Fourth Proportional to 741.32, 1,111.86 and 466.57

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Solution

The fourth proportional to 741.32, 1,111.86 and 466.57 is: 699.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    741.32 : 1,111.86 = 466.57 : x
  2. Step 2: Convert to fraction form
    741.32/1,111.86 = 466.57/x
  3. Step 3: Cross multiply
    741.32x = 1,111.86 × 466.57
  4. Step 4: Simplify right side
    741.32x = 518,757.74
  5. Step 5: Solve for x
    x = 518,757.74/741.32
  6. Step 6: Final answer
    x = 699.78

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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.