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Finding the Fourth Proportional to 508,461.11, 701,674.41 and 279,022.24

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Solution

The fourth proportional to 508,461.11, 701,674.41 and 279,022.24 is: 385,049.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,461.11 : 701,674.41 = 279,022.24 : x
  2. Step 2: Convert to fraction form
    508,461.11/701,674.41 = 279,022.24/x
  3. Step 3: Cross multiply
    508,461.11x = 701,674.41 × 279,022.24
  4. Step 4: Simplify right side
    508,461.11x = 195,782,765,628.88
  5. Step 5: Solve for x
    x = 195,782,765,628.88/508,461.11
  6. Step 6: Final answer
    x = 385,049.64

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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.