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Finding the Fourth Proportional to 1,195.98, 1,650.31 and 698.26

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Solution

The fourth proportional to 1,195.98, 1,650.31 and 698.26 is: 963.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.98 : 1,650.31 = 698.26 : x
  2. Step 2: Convert to fraction form
    1,195.98/1,650.31 = 698.26/x
  3. Step 3: Cross multiply
    1,195.98x = 1,650.31 × 698.26
  4. Step 4: Simplify right side
    1,195.98x = 1,152,333.72
  5. Step 5: Solve for x
    x = 1,152,333.72/1,195.98
  6. Step 6: Final answer
    x = 963.51

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1.5x scale

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.