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Finding the Fourth Proportional to 505,958.65, 758,937.98 and 190,486.33

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Solution

The fourth proportional to 505,958.65, 758,937.98 and 190,486.33 is: 285,729.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,958.65 : 758,937.98 = 190,486.33 : x
  2. Step 2: Convert to fraction form
    505,958.65/758,937.98 = 190,486.33/x
  3. Step 3: Cross multiply
    505,958.65x = 758,937.98 × 190,486.33
  4. Step 4: Simplify right side
    505,958.65x = 144,567,309,555.38
  5. Step 5: Solve for x
    x = 144,567,309,555.38/505,958.65
  6. Step 6: Final answer
    x = 285,729.50

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Similar ratio
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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.