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Finding the Fourth Proportional to 3,349.66, 4,622.20 and 1,914.04

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Solution

The fourth proportional to 3,349.66, 4,622.20 and 1,914.04 is: 2,641.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,349.66 : 4,622.20 = 1,914.04 : x
  2. Step 2: Convert to fraction form
    3,349.66/4,622.20 = 1,914.04/x
  3. Step 3: Cross multiply
    3,349.66x = 4,622.20 × 1,914.04
  4. Step 4: Simplify right side
    3,349.66x = 8,847,091.26
  5. Step 5: Solve for x
    x = 8,847,091.26/3,349.66
  6. Step 6: Final answer
    x = 2,641.19

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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.