Home / 839,131.44-1,259,090.82-418,440.12

Finding the Fourth Proportional to 839,131.44, 1,259,090.82 and 418,440.12

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Solution

The fourth proportional to 839,131.44, 1,259,090.82 and 418,440.12 is: 627,856.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,131.44 : 1,259,090.82 = 418,440.12 : x
  2. Step 2: Convert to fraction form
    839,131.44/1,259,090.82 = 418,440.12/x
  3. Step 3: Cross multiply
    839,131.44x = 1,259,090.82 × 418,440.12
  4. Step 4: Simplify right side
    839,131.44x = 526,854,113,811.70
  5. Step 5: Solve for x
    x = 526,854,113,811.70/839,131.44
  6. Step 6: Final answer
    x = 627,856.48

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Double scale
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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.