Home / 905,440.41-1,248,259.21-722,300.57

Finding the Fourth Proportional to 905,440.41, 1,248,259.21 and 722,300.57

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Solution

The fourth proportional to 905,440.41, 1,248,259.21 and 722,300.57 is: 995,778.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,440.41 : 1,248,259.21 = 722,300.57 : x
  2. Step 2: Convert to fraction form
    905,440.41/1,248,259.21 = 722,300.57/x
  3. Step 3: Cross multiply
    905,440.41x = 1,248,259.21 × 722,300.57
  4. Step 4: Simplify right side
    905,440.41x = 901,618,332,649.45
  5. Step 5: Solve for x
    x = 901,618,332,649.45/905,440.41
  6. Step 6: Final answer
    x = 995,778.77

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Double scale
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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.