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Finding the Fourth Proportional to 3,713.95, 5,570.74 and 940.67

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Solution

The fourth proportional to 3,713.95, 5,570.74 and 940.67 is: 1,410.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.95 : 5,570.74 = 940.67 : x
  2. Step 2: Convert to fraction form
    3,713.95/5,570.74 = 940.67/x
  3. Step 3: Cross multiply
    3,713.95x = 5,570.74 × 940.67
  4. Step 4: Simplify right side
    3,713.95x = 5,240,228.00
  5. Step 5: Solve for x
    x = 5,240,228.00/3,713.95
  6. Step 6: Final answer
    x = 1,410.96

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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.