Home / 299,219.49-412,922.72-191,789.43

Finding the Fourth Proportional to 299,219.49, 412,922.72 and 191,789.43

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Solution

The fourth proportional to 299,219.49, 412,922.72 and 191,789.43 is: 264,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,219.49 : 412,922.72 = 191,789.43 : x
  2. Step 2: Convert to fraction form
    299,219.49/412,922.72 = 191,789.43/x
  3. Step 3: Cross multiply
    299,219.49x = 412,922.72 × 191,789.43
  4. Step 4: Simplify right side
    299,219.49x = 79,194,212,143.90
  5. Step 5: Solve for x
    x = 79,194,212,143.90/299,219.49
  6. Step 6: Final answer
    x = 264,669.30

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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.