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Finding the Fourth Proportional to 726, 1,090.72 and 466.48

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Solution

The fourth proportional to 726, 1,090.72 and 466.48 is: 700.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    726 : 1,090.72 = 466.48 : x
  2. Step 2: Convert to fraction form
    726/1,090.72 = 466.48/x
  3. Step 3: Cross multiply
    726x = 1,090.72 × 466.48
  4. Step 4: Simplify right side
    726x = 508,799.07
  5. Step 5: Solve for x
    x = 508,799.07/726
  6. Step 6: Final answer
    x = 700.83

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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.