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Finding the Fourth Proportional to 288,796.20, 433,186.20 and 131,024.40

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Solution

The fourth proportional to 288,796.20, 433,186.20 and 131,024.40 is: 196,532.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,796.20 : 433,186.20 = 131,024.40 : x
  2. Step 2: Convert to fraction form
    288,796.20/433,186.20 = 131,024.40/x
  3. Step 3: Cross multiply
    288,796.20x = 433,186.20 × 131,024.40
  4. Step 4: Simplify right side
    288,796.20x = 56,757,961,943.28
  5. Step 5: Solve for x
    x = 56,757,961,943.28/288,796.20
  6. Step 6: Final answer
    x = 196,532.93

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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.