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Finding the Fourth Proportional to 1,157.74, 1,735.34 and 464.24

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Solution

The fourth proportional to 1,157.74, 1,735.34 and 464.24 is: 695.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.74 : 1,735.34 = 464.24 : x
  2. Step 2: Convert to fraction form
    1,157.74/1,735.34 = 464.24/x
  3. Step 3: Cross multiply
    1,157.74x = 1,735.34 × 464.24
  4. Step 4: Simplify right side
    1,157.74x = 805,614.24
  5. Step 5: Solve for x
    x = 805,614.24/1,157.74
  6. Step 6: Final answer
    x = 695.85

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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.