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Finding the Fourth Proportional to 397,477.80, 596,058.30 and 131,164.20

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Solution

The fourth proportional to 397,477.80, 596,058.30 and 131,164.20 is: 196,694.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,477.80 : 596,058.30 = 131,164.20 : x
  2. Step 2: Convert to fraction form
    397,477.80/596,058.30 = 131,164.20/x
  3. Step 3: Cross multiply
    397,477.80x = 596,058.30 × 131,164.20
  4. Step 4: Simplify right side
    397,477.80x = 78,181,510,072.86
  5. Step 5: Solve for x
    x = 78,181,510,072.86/397,477.80
  6. Step 6: Final answer
    x = 196,694.03

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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.