Home / 837,989.82-1,257,489.09-305,556.30

Finding the Fourth Proportional to 837,989.82, 1,257,489.09 and 305,556.30

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Solution

The fourth proportional to 837,989.82, 1,257,489.09 and 305,556.30 is: 458,518.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,989.82 : 1,257,489.09 = 305,556.30 : x
  2. Step 2: Convert to fraction form
    837,989.82/1,257,489.09 = 305,556.30/x
  3. Step 3: Cross multiply
    837,989.82x = 1,257,489.09 × 305,556.30
  4. Step 4: Simplify right side
    837,989.82x = 384,233,713,630.77
  5. Step 5: Solve for x
    x = 384,233,713,630.77/837,989.82
  6. Step 6: Final answer
    x = 458,518.35

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.