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Finding the Fourth Proportional to 2,743.90, 4,114.81 and 894.58

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Solution

The fourth proportional to 2,743.90, 4,114.81 and 894.58 is: 1,341.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.90 : 4,114.81 = 894.58 : x
  2. Step 2: Convert to fraction form
    2,743.90/4,114.81 = 894.58/x
  3. Step 3: Cross multiply
    2,743.90x = 4,114.81 × 894.58
  4. Step 4: Simplify right side
    2,743.90x = 3,681,003.92
  5. Step 5: Solve for x
    x = 3,681,003.92/2,743.90
  6. Step 6: Final answer
    x = 1,341.53

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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.