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Finding the Fourth Proportional to 3,299.02, 4,947.75 and 958.40

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Solution

The fourth proportional to 3,299.02, 4,947.75 and 958.40 is: 1,437.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,299.02 : 4,947.75 = 958.40 : x
  2. Step 2: Convert to fraction form
    3,299.02/4,947.75 = 958.40/x
  3. Step 3: Cross multiply
    3,299.02x = 4,947.75 × 958.40
  4. Step 4: Simplify right side
    3,299.02x = 4,741,923.60
  5. Step 5: Solve for x
    x = 4,741,923.60/3,299.02
  6. Step 6: Final answer
    x = 1,437.37

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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.