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Finding the Fourth Proportional to 505,765.88, 758,761.80 and 190,225.52

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Solution

The fourth proportional to 505,765.88, 758,761.80 and 190,225.52 is: 285,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,765.88 : 758,761.80 = 190,225.52 : x
  2. Step 2: Convert to fraction form
    505,765.88/758,761.80 = 190,225.52/x
  3. Step 3: Cross multiply
    505,765.88x = 758,761.80 × 190,225.52
  4. Step 4: Simplify right side
    505,765.88x = 144,335,857,961.14
  5. Step 5: Solve for x
    x = 144,335,857,961.14/505,765.88
  6. Step 6: Final answer
    x = 285,380.77

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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.