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Finding the Fourth Proportional to 1,049.28, 1,573.08 and 464.28

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Solution

The fourth proportional to 1,049.28, 1,573.08 and 464.28 is: 696.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.28 : 1,573.08 = 464.28 : x
  2. Step 2: Convert to fraction form
    1,049.28/1,573.08 = 464.28/x
  3. Step 3: Cross multiply
    1,049.28x = 1,573.08 × 464.28
  4. Step 4: Simplify right side
    1,049.28x = 730,349.58
  5. Step 5: Solve for x
    x = 730,349.58/1,049.28
  6. Step 6: Final answer
    x = 696.05

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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.