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Finding the Fourth Proportional to 1,467.68, 2,199.63 and 774.32

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Solution

The fourth proportional to 1,467.68, 2,199.63 and 774.32 is: 1,160.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.68 : 2,199.63 = 774.32 : x
  2. Step 2: Convert to fraction form
    1,467.68/2,199.63 = 774.32/x
  3. Step 3: Cross multiply
    1,467.68x = 2,199.63 × 774.32
  4. Step 4: Simplify right side
    1,467.68x = 1,703,217.50
  5. Step 5: Solve for x
    x = 1,703,217.50/1,467.68
  6. Step 6: Final answer
    x = 1,160.48

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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.