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Finding the Fourth Proportional to 330,947.56, 496,628.70 and 133,955.56

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Solution

The fourth proportional to 330,947.56, 496,628.70 and 133,955.56 is: 201,017.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,947.56 : 496,628.70 = 133,955.56 : x
  2. Step 2: Convert to fraction form
    330,947.56/496,628.70 = 133,955.56/x
  3. Step 3: Cross multiply
    330,947.56x = 496,628.70 × 133,955.56
  4. Step 4: Simplify right side
    330,947.56x = 66,526,175,620.57
  5. Step 5: Solve for x
    x = 66,526,175,620.57/330,947.56
  6. Step 6: Final answer
    x = 201,017.27

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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.