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Finding the Fourth Proportional to 741.92, 1,024.24 and 466.08

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Solution

The fourth proportional to 741.92, 1,024.24 and 466.08 is: 643.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    741.92 : 1,024.24 = 466.08 : x
  2. Step 2: Convert to fraction form
    741.92/1,024.24 = 466.08/x
  3. Step 3: Cross multiply
    741.92x = 1,024.24 × 466.08
  4. Step 4: Simplify right side
    741.92x = 477,377.78
  5. Step 5: Solve for x
    x = 477,377.78/741.92
  6. Step 6: Final answer
    x = 643.44

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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.