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Finding the Fourth Proportional to 1,197.24, 1,652.50 and 699.90

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Solution

The fourth proportional to 1,197.24, 1,652.50 and 699.90 is: 966.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.24 : 1,652.50 = 699.90 : x
  2. Step 2: Convert to fraction form
    1,197.24/1,652.50 = 699.90/x
  3. Step 3: Cross multiply
    1,197.24x = 1,652.50 × 699.90
  4. Step 4: Simplify right side
    1,197.24x = 1,156,584.75
  5. Step 5: Solve for x
    x = 1,156,584.75/1,197.24
  6. Step 6: Final answer
    x = 966.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.