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Finding the Fourth Proportional to 1,170.52, 1,756.14 and 622.60

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Solution

The fourth proportional to 1,170.52, 1,756.14 and 622.60 is: 934.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.52 : 1,756.14 = 622.60 : x
  2. Step 2: Convert to fraction form
    1,170.52/1,756.14 = 622.60/x
  3. Step 3: Cross multiply
    1,170.52x = 1,756.14 × 622.60
  4. Step 4: Simplify right side
    1,170.52x = 1,093,372.76
  5. Step 5: Solve for x
    x = 1,093,372.76/1,170.52
  6. Step 6: Final answer
    x = 934.09

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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.