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Finding the Fourth Proportional to 376,613.08, 519,509.10 and 225,622.60

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Solution

The fourth proportional to 376,613.08, 519,509.10 and 225,622.60 is: 311,229.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,613.08 : 519,509.10 = 225,622.60 : x
  2. Step 2: Convert to fraction form
    376,613.08/519,509.10 = 225,622.60/x
  3. Step 3: Cross multiply
    376,613.08x = 519,509.10 × 225,622.60
  4. Step 4: Simplify right side
    376,613.08x = 117,212,993,865.66
  5. Step 5: Solve for x
    x = 117,212,993,865.66/376,613.08
  6. Step 6: Final answer
    x = 311,229.22

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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.