Home / 1,691,879.17-2,334,811.31-917,511.43

Finding the Fourth Proportional to 1,691,879.17, 2,334,811.31 and 917,511.43

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Solution

The fourth proportional to 1,691,879.17, 2,334,811.31 and 917,511.43 is: 1,266,175.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,879.17 : 2,334,811.31 = 917,511.43 : x
  2. Step 2: Convert to fraction form
    1,691,879.17/2,334,811.31 = 917,511.43/x
  3. Step 3: Cross multiply
    1,691,879.17x = 2,334,811.31 × 917,511.43
  4. Step 4: Simplify right side
    1,691,879.17x = 2,142,216,063,818.27
  5. Step 5: Solve for x
    x = 2,142,216,063,818.27/1,691,879.17
  6. Step 6: Final answer
    x = 1,266,175.56

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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.