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Finding the Fourth Proportional to 2,598.45, 3,899.63 and 955.41

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Solution

The fourth proportional to 2,598.45, 3,899.63 and 955.41 is: 1,433.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,598.45 : 3,899.63 = 955.41 : x
  2. Step 2: Convert to fraction form
    2,598.45/3,899.63 = 955.41/x
  3. Step 3: Cross multiply
    2,598.45x = 3,899.63 × 955.41
  4. Step 4: Simplify right side
    2,598.45x = 3,725,745.50
  5. Step 5: Solve for x
    x = 3,725,745.50/2,598.45
  6. Step 6: Final answer
    x = 1,433.83

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Double scale
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Similar ratio
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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.