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Finding the Fourth Proportional to 950,321.75, 1,311,476.64 and 520,601.75

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Solution

The fourth proportional to 950,321.75, 1,311,476.64 and 520,601.75 is: 718,448.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,321.75 : 1,311,476.64 = 520,601.75 : x
  2. Step 2: Convert to fraction form
    950,321.75/1,311,476.64 = 520,601.75/x
  3. Step 3: Cross multiply
    950,321.75x = 1,311,476.64 × 520,601.75
  4. Step 4: Simplify right side
    950,321.75x = 682,757,033,868.12
  5. Step 5: Solve for x
    x = 682,757,033,868.12/950,321.75
  6. Step 6: Final answer
    x = 718,448.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.