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Finding the Fourth Proportional to 483,125.39, 666,563.52 and 279,101.86

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Solution

The fourth proportional to 483,125.39, 666,563.52 and 279,101.86 is: 385,074.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,125.39 : 666,563.52 = 279,101.86 : x
  2. Step 2: Convert to fraction form
    483,125.39/666,563.52 = 279,101.86/x
  3. Step 3: Cross multiply
    483,125.39x = 666,563.52 × 279,101.86
  4. Step 4: Simplify right side
    483,125.39x = 186,039,117,620.37
  5. Step 5: Solve for x
    x = 186,039,117,620.37/483,125.39
  6. Step 6: Final answer
    x = 385,074.19

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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.