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Finding the Fourth Proportional to 3,168.14, 4,751.70 and 946.94

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Solution

The fourth proportional to 3,168.14, 4,751.70 and 946.94 is: 1,420.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.14 : 4,751.70 = 946.94 : x
  2. Step 2: Convert to fraction form
    3,168.14/4,751.70 = 946.94/x
  3. Step 3: Cross multiply
    3,168.14x = 4,751.70 × 946.94
  4. Step 4: Simplify right side
    3,168.14x = 4,499,574.80
  5. Step 5: Solve for x
    x = 4,499,574.80/3,168.14
  6. Step 6: Final answer
    x = 1,420.26

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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.