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Finding the Fourth Proportional to 1,708.43, 2,562.94 and 734.50

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Solution

The fourth proportional to 1,708.43, 2,562.94 and 734.50 is: 1,101.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.43 : 2,562.94 = 734.50 : x
  2. Step 2: Convert to fraction form
    1,708.43/2,562.94 = 734.50/x
  3. Step 3: Cross multiply
    1,708.43x = 2,562.94 × 734.50
  4. Step 4: Simplify right side
    1,708.43x = 1,882,483.55
  5. Step 5: Solve for x
    x = 1,882,483.55/1,708.43
  6. Step 6: Final answer
    x = 1,101.88

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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.