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Finding the Fourth Proportional to 320,596.38, 481,062.24 and 131,197.32

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Solution

The fourth proportional to 320,596.38, 481,062.24 and 131,197.32 is: 196,864.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,596.38 : 481,062.24 = 131,197.32 : x
  2. Step 2: Convert to fraction form
    320,596.38/481,062.24 = 131,197.32/x
  3. Step 3: Cross multiply
    320,596.38x = 481,062.24 × 131,197.32
  4. Step 4: Simplify right side
    320,596.38x = 63,114,076,641.20
  5. Step 5: Solve for x
    x = 63,114,076,641.20/320,596.38
  6. Step 6: Final answer
    x = 196,864.60

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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.