Home / 1,280,285.81-1,766,773.79-699,496.47

Finding the Fourth Proportional to 1,280,285.81, 1,766,773.79 and 699,496.47

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Solution

The fourth proportional to 1,280,285.81, 1,766,773.79 and 699,496.47 is: 965,293.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,285.81 : 1,766,773.79 = 699,496.47 : x
  2. Step 2: Convert to fraction form
    1,280,285.81/1,766,773.79 = 699,496.47/x
  3. Step 3: Cross multiply
    1,280,285.81x = 1,766,773.79 × 699,496.47
  4. Step 4: Simplify right side
    1,280,285.81x = 1,235,852,025,896.04
  5. Step 5: Solve for x
    x = 1,235,852,025,896.04/1,280,285.81
  6. Step 6: Final answer
    x = 965,293.86

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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.