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Finding the Fourth Proportional to 483,051.78, 666,580.62 and 268,191.79

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Solution

The fourth proportional to 483,051.78, 666,580.62 and 268,191.79 is: 370,087.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,051.78 : 666,580.62 = 268,191.79 : x
  2. Step 2: Convert to fraction form
    483,051.78/666,580.62 = 268,191.79/x
  3. Step 3: Cross multiply
    483,051.78x = 666,580.62 × 268,191.79
  4. Step 4: Simplify right side
    483,051.78x = 178,771,449,657.11
  5. Step 5: Solve for x
    x = 178,771,449,657.11/483,051.78
  6. Step 6: Final answer
    x = 370,087.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.