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Finding the Fourth Proportional to 2,338.97, 3,508.61 and 695.63

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Solution

The fourth proportional to 2,338.97, 3,508.61 and 695.63 is: 1,043.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,338.97 : 3,508.61 = 695.63 : x
  2. Step 2: Convert to fraction form
    2,338.97/3,508.61 = 695.63/x
  3. Step 3: Cross multiply
    2,338.97x = 3,508.61 × 695.63
  4. Step 4: Simplify right side
    2,338.97x = 2,440,704.88
  5. Step 5: Solve for x
    x = 2,440,704.88/2,338.97
  6. Step 6: Final answer
    x = 1,043.50

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1.5x scale

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.