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Finding the Fourth Proportional to 1,195.41, 1,649.46 and 697.95

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Solution

The fourth proportional to 1,195.41, 1,649.46 and 697.95 is: 963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.41 : 1,649.46 = 697.95 : x
  2. Step 2: Convert to fraction form
    1,195.41/1,649.46 = 697.95/x
  3. Step 3: Cross multiply
    1,195.41x = 1,649.46 × 697.95
  4. Step 4: Simplify right side
    1,195.41x = 1,151,240.61
  5. Step 5: Solve for x
    x = 1,151,240.61/1,195.41
  6. Step 6: Final answer
    x = 963.05

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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.