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Finding the Fourth Proportional to 505,028.56, 757,518.24 and 189,460.88

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Solution

The fourth proportional to 505,028.56, 757,518.24 and 189,460.88 is: 284,182.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,028.56 : 757,518.24 = 189,460.88 : x
  2. Step 2: Convert to fraction form
    505,028.56/757,518.24 = 189,460.88/x
  3. Step 3: Cross multiply
    505,028.56x = 757,518.24 × 189,460.88
  4. Step 4: Simplify right side
    505,028.56x = 143,520,072,366.45
  5. Step 5: Solve for x
    x = 143,520,072,366.45/505,028.56
  6. Step 6: Final answer
    x = 284,182.09

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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.