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Finding the Fourth Proportional to 559,672.29, 839,426.41 and 275,286.51

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Solution

The fourth proportional to 559,672.29, 839,426.41 and 275,286.51 is: 412,889.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,672.29 : 839,426.41 = 275,286.51 : x
  2. Step 2: Convert to fraction form
    559,672.29/839,426.41 = 275,286.51/x
  3. Step 3: Cross multiply
    559,672.29x = 839,426.41 × 275,286.51
  4. Step 4: Simplify right side
    559,672.29x = 231,082,767,154.84
  5. Step 5: Solve for x
    x = 231,082,767,154.84/559,672.29
  6. Step 6: Final answer
    x = 412,889.42

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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.