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Finding the Fourth Proportional to 3,259.85, 4,889.78 and 794.67

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Solution

The fourth proportional to 3,259.85, 4,889.78 and 794.67 is: 1,192.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.85 : 4,889.78 = 794.67 : x
  2. Step 2: Convert to fraction form
    3,259.85/4,889.78 = 794.67/x
  3. Step 3: Cross multiply
    3,259.85x = 4,889.78 × 794.67
  4. Step 4: Simplify right side
    3,259.85x = 3,885,761.47
  5. Step 5: Solve for x
    x = 3,885,761.47/3,259.85
  6. Step 6: Final answer
    x = 1,192.01

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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.