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Finding the Fourth Proportional to 313,993.70, 433,158.96 and 186,579.08

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Solution

The fourth proportional to 313,993.70, 433,158.96 and 186,579.08 is: 257,388.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,993.70 : 433,158.96 = 186,579.08 : x
  2. Step 2: Convert to fraction form
    313,993.70/433,158.96 = 186,579.08/x
  3. Step 3: Cross multiply
    313,993.70x = 433,158.96 × 186,579.08
  4. Step 4: Simplify right side
    313,993.70x = 80,818,400,250.56
  5. Step 5: Solve for x
    x = 80,818,400,250.56/313,993.70
  6. Step 6: Final answer
    x = 257,388.60

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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.