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Finding the Fourth Proportional to 703.87, 1,057.17 and 573.96

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Solution

The fourth proportional to 703.87, 1,057.17 and 573.96 is: 862.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.87 : 1,057.17 = 573.96 : x
  2. Step 2: Convert to fraction form
    703.87/1,057.17 = 573.96/x
  3. Step 3: Cross multiply
    703.87x = 1,057.17 × 573.96
  4. Step 4: Simplify right side
    703.87x = 606,770.42
  5. Step 5: Solve for x
    x = 606,770.42/703.87
  6. Step 6: Final answer
    x = 862.06

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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.