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Finding the Fourth Proportional to 351,794.54, 485,475.73 and 190,653.55

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Solution

The fourth proportional to 351,794.54, 485,475.73 and 190,653.55 is: 263,101.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,794.54 : 485,475.73 = 190,653.55 : x
  2. Step 2: Convert to fraction form
    351,794.54/485,475.73 = 190,653.55/x
  3. Step 3: Cross multiply
    351,794.54x = 485,475.73 × 190,653.55
  4. Step 4: Simplify right side
    351,794.54x = 92,557,669,673.02
  5. Step 5: Solve for x
    x = 92,557,669,673.02/351,794.54
  6. Step 6: Final answer
    x = 263,101.49

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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.