Home / 991,119.93-1,486,736.19-281,091.75

Finding the Fourth Proportional to 991,119.93, 1,486,736.19 and 281,091.75

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Solution

The fourth proportional to 991,119.93, 1,486,736.19 and 281,091.75 is: 421,653.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,119.93 : 1,486,736.19 = 281,091.75 : x
  2. Step 2: Convert to fraction form
    991,119.93/1,486,736.19 = 281,091.75/x
  3. Step 3: Cross multiply
    991,119.93x = 1,486,736.19 × 281,091.75
  4. Step 4: Simplify right side
    991,119.93x = 417,909,277,435.43
  5. Step 5: Solve for x
    x = 417,909,277,435.43/991,119.93
  6. Step 6: Final answer
    x = 421,653.59

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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.