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Finding the Fourth Proportional to 2,790.16, 4,184.02 and 940.93

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Solution

The fourth proportional to 2,790.16, 4,184.02 and 940.93 is: 1,410.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.16 : 4,184.02 = 940.93 : x
  2. Step 2: Convert to fraction form
    2,790.16/4,184.02 = 940.93/x
  3. Step 3: Cross multiply
    2,790.16x = 4,184.02 × 940.93
  4. Step 4: Simplify right side
    2,790.16x = 3,936,860.65
  5. Step 5: Solve for x
    x = 3,936,860.65/2,790.16
  6. Step 6: Final answer
    x = 1,410.98

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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.