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Finding the Fourth Proportional to 3,075.75, 4,614.35 and 995.75

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Solution

The fourth proportional to 3,075.75, 4,614.35 and 995.75 is: 1,493.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.75 : 4,614.35 = 995.75 : x
  2. Step 2: Convert to fraction form
    3,075.75/4,614.35 = 995.75/x
  3. Step 3: Cross multiply
    3,075.75x = 4,614.35 × 995.75
  4. Step 4: Simplify right side
    3,075.75x = 4,594,739.01
  5. Step 5: Solve for x
    x = 4,594,739.01/3,075.75
  6. Step 6: Final answer
    x = 1,493.86

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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.