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Finding the Fourth Proportional to 3,093.90, 4,641.26 and 902.61

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Solution

The fourth proportional to 3,093.90, 4,641.26 and 902.61 is: 1,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,093.90 : 4,641.26 = 902.61 : x
  2. Step 2: Convert to fraction form
    3,093.90/4,641.26 = 902.61/x
  3. Step 3: Cross multiply
    3,093.90x = 4,641.26 × 902.61
  4. Step 4: Simplify right side
    3,093.90x = 4,189,226.74
  5. Step 5: Solve for x
    x = 4,189,226.74/3,093.90
  6. Step 6: Final answer
    x = 1,354.03

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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.