Home / 1,185,679.44-1,636,238.61-641,813.56

Finding the Fourth Proportional to 1,185,679.44, 1,636,238.61 and 641,813.56

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Solution

The fourth proportional to 1,185,679.44, 1,636,238.61 and 641,813.56 is: 885,703.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,679.44 : 1,636,238.61 = 641,813.56 : x
  2. Step 2: Convert to fraction form
    1,185,679.44/1,636,238.61 = 641,813.56/x
  3. Step 3: Cross multiply
    1,185,679.44x = 1,636,238.61 × 641,813.56
  4. Step 4: Simplify right side
    1,185,679.44x = 1,050,160,123,202.96
  5. Step 5: Solve for x
    x = 1,050,160,123,202.96/1,185,679.44
  6. Step 6: Final answer
    x = 885,703.24

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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.