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Finding the Fourth Proportional to 1,043.28, 1,564.11 and 466.56

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Solution

The fourth proportional to 1,043.28, 1,564.11 and 466.56 is: 699.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.28 : 1,564.11 = 466.56 : x
  2. Step 2: Convert to fraction form
    1,043.28/1,564.11 = 466.56/x
  3. Step 3: Cross multiply
    1,043.28x = 1,564.11 × 466.56
  4. Step 4: Simplify right side
    1,043.28x = 729,751.16
  5. Step 5: Solve for x
    x = 729,751.16/1,043.28
  6. Step 6: Final answer
    x = 699.48

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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.