Home / 1,280,005.33-1,766,336.46-699,112.80

Finding the Fourth Proportional to 1,280,005.33, 1,766,336.46 and 699,112.80

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Solution

The fourth proportional to 1,280,005.33, 1,766,336.46 and 699,112.80 is: 964,736.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,005.33 : 1,766,336.46 = 699,112.80 : x
  2. Step 2: Convert to fraction form
    1,280,005.33/1,766,336.46 = 699,112.80/x
  3. Step 3: Cross multiply
    1,280,005.33x = 1,766,336.46 × 699,112.80
  4. Step 4: Simplify right side
    1,280,005.33x = 1,234,868,430,914.36
  5. Step 5: Solve for x
    x = 1,234,868,430,914.36/1,280,005.33
  6. Step 6: Final answer
    x = 964,736.94

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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.