Home / 905,439.09-1,248,257.41-722,299.25

Finding the Fourth Proportional to 905,439.09, 1,248,257.41 and 722,299.25

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Solution

The fourth proportional to 905,439.09, 1,248,257.41 and 722,299.25 is: 995,776.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,439.09 : 1,248,257.41 = 722,299.25 : x
  2. Step 2: Convert to fraction form
    905,439.09/1,248,257.41 = 722,299.25/x
  3. Step 3: Cross multiply
    905,439.09x = 1,248,257.41 × 722,299.25
  4. Step 4: Simplify right side
    905,439.09x = 901,615,392,364.84
  5. Step 5: Solve for x
    x = 901,615,392,364.84/905,439.09
  6. Step 6: Final answer
    x = 995,776.97

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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.