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Finding the Fourth Proportional to 2,196.94, 3,295.74 and 715.68

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Solution

The fourth proportional to 2,196.94, 3,295.74 and 715.68 is: 1,073.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,196.94 : 3,295.74 = 715.68 : x
  2. Step 2: Convert to fraction form
    2,196.94/3,295.74 = 715.68/x
  3. Step 3: Cross multiply
    2,196.94x = 3,295.74 × 715.68
  4. Step 4: Simplify right side
    2,196.94x = 2,358,695.20
  5. Step 5: Solve for x
    x = 2,358,695.20/2,196.94
  6. Step 6: Final answer
    x = 1,073.63

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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.