Home / 839,905.82-1,259,863.51-208,819.63

Finding the Fourth Proportional to 839,905.82, 1,259,863.51 and 208,819.63

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Solution

The fourth proportional to 839,905.82, 1,259,863.51 and 208,819.63 is: 313,230.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,905.82 : 1,259,863.51 = 208,819.63 : x
  2. Step 2: Convert to fraction form
    839,905.82/1,259,863.51 = 208,819.63/x
  3. Step 3: Cross multiply
    839,905.82x = 1,259,863.51 × 208,819.63
  4. Step 4: Simplify right side
    839,905.82x = 263,084,232,008.70
  5. Step 5: Solve for x
    x = 263,084,232,008.70/839,905.82
  6. Step 6: Final answer
    x = 313,230.63

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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.