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Finding the Fourth Proportional to 297,155.80, 445,128.90 and 184,490.20

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Solution

The fourth proportional to 297,155.80, 445,128.90 and 184,490.20 is: 276,359.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,155.80 : 445,128.90 = 184,490.20 : x
  2. Step 2: Convert to fraction form
    297,155.80/445,128.90 = 184,490.20/x
  3. Step 3: Cross multiply
    297,155.80x = 445,128.90 × 184,490.20
  4. Step 4: Simplify right side
    297,155.80x = 82,121,919,786.78
  5. Step 5: Solve for x
    x = 82,121,919,786.78/297,155.80
  6. Step 6: Final answer
    x = 276,359.81

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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.