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Finding the Fourth Proportional to 483,299.97, 667,074.54 and 279,468.45

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Solution

The fourth proportional to 483,299.97, 667,074.54 and 279,468.45 is: 385,736.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,299.97 : 667,074.54 = 279,468.45 : x
  2. Step 2: Convert to fraction form
    483,299.97/667,074.54 = 279,468.45/x
  3. Step 3: Cross multiply
    483,299.97x = 667,074.54 × 279,468.45
  4. Step 4: Simplify right side
    483,299.97x = 186,426,287,728.26
  5. Step 5: Solve for x
    x = 186,426,287,728.26/483,299.97
  6. Step 6: Final answer
    x = 385,736.19

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1.5x scale

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.