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Finding the Fourth Proportional to 620,540, 930,863.60 and 171,260.94

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Solution

The fourth proportional to 620,540, 930,863.60 and 171,260.94 is: 256,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,540 : 930,863.60 = 171,260.94 : x
  2. Step 2: Convert to fraction form
    620,540/930,863.60 = 171,260.94/x
  3. Step 3: Cross multiply
    620,540x = 930,863.60 × 171,260.94
  4. Step 4: Simplify right side
    620,540x = 159,420,575,147.78
  5. Step 5: Solve for x
    x = 159,420,575,147.78/620,540
  6. Step 6: Final answer
    x = 256,906.20

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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.