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Finding the Fourth Proportional to 2,339.10, 3,508.65 and 696.22

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Solution

The fourth proportional to 2,339.10, 3,508.65 and 696.22 is: 1,044.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.10 : 3,508.65 = 696.22 : x
  2. Step 2: Convert to fraction form
    2,339.10/3,508.65 = 696.22/x
  3. Step 3: Cross multiply
    2,339.10x = 3,508.65 × 696.22
  4. Step 4: Simplify right side
    2,339.10x = 2,442,783.53
  5. Step 5: Solve for x
    x = 2,442,783.53/2,339.10
  6. Step 6: Final answer
    x = 1,044.33

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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.