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Finding the Fourth Proportional to 457,193.97, 630,867.89 and 263,608.97

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Solution

The fourth proportional to 457,193.97, 630,867.89 and 263,608.97 is: 363,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,193.97 : 630,867.89 = 263,608.97 : x
  2. Step 2: Convert to fraction form
    457,193.97/630,867.89 = 263,608.97/x
  3. Step 3: Cross multiply
    457,193.97x = 630,867.89 × 263,608.97
  4. Step 4: Simplify right side
    457,193.97x = 166,302,432,193.66
  5. Step 5: Solve for x
    x = 166,302,432,193.66/457,193.97
  6. Step 6: Final answer
    x = 363,745.90

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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.