Home / 1,188,845.06-1,640,605.92-679,558.37

Finding the Fourth Proportional to 1,188,845.06, 1,640,605.92 and 679,558.37

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Solution

The fourth proportional to 1,188,845.06, 1,640,605.92 and 679,558.37 is: 937,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,845.06 : 1,640,605.92 = 679,558.37 : x
  2. Step 2: Convert to fraction form
    1,188,845.06/1,640,605.92 = 679,558.37/x
  3. Step 3: Cross multiply
    1,188,845.06x = 1,640,605.92 × 679,558.37
  4. Step 4: Simplify right side
    1,188,845.06x = 1,114,887,484,807.55
  5. Step 5: Solve for x
    x = 1,114,887,484,807.55/1,188,845.06
  6. Step 6: Final answer
    x = 937,790.40

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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.