Home / 1,208,110.22-1,667,198.70-711,415.79

Finding the Fourth Proportional to 1,208,110.22, 1,667,198.70 and 711,415.79

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Solution

The fourth proportional to 1,208,110.22, 1,667,198.70 and 711,415.79 is: 981,757.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,110.22 : 1,667,198.70 = 711,415.79 : x
  2. Step 2: Convert to fraction form
    1,208,110.22/1,667,198.70 = 711,415.79/x
  3. Step 3: Cross multiply
    1,208,110.22x = 1,667,198.70 × 711,415.79
  4. Step 4: Simplify right side
    1,208,110.22x = 1,186,071,478,774.39
  5. Step 5: Solve for x
    x = 1,186,071,478,774.39/1,208,110.22
  6. Step 6: Final answer
    x = 981,757.67

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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.