Home / 913,896.53-1,261,216.61-505,998.35

Finding the Fourth Proportional to 913,896.53, 1,261,216.61 and 505,998.35

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Solution

The fourth proportional to 913,896.53, 1,261,216.61 and 505,998.35 is: 698,299.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,896.53 : 1,261,216.61 = 505,998.35 : x
  2. Step 2: Convert to fraction form
    913,896.53/1,261,216.61 = 505,998.35/x
  3. Step 3: Cross multiply
    913,896.53x = 1,261,216.61 × 505,998.35
  4. Step 4: Simplify right side
    913,896.53x = 638,173,526,805.64
  5. Step 5: Solve for x
    x = 638,173,526,805.64/913,896.53
  6. Step 6: Final answer
    x = 698,299.54

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1.5x scale

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.