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Finding the Fourth Proportional to 559,743.65, 839,885.43 and 275,279.88

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Solution

The fourth proportional to 559,743.65, 839,885.43 and 275,279.88 is: 413,052.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,743.65 : 839,885.43 = 275,279.88 : x
  2. Step 2: Convert to fraction form
    559,743.65/839,885.43 = 275,279.88/x
  3. Step 3: Cross multiply
    559,743.65x = 839,885.43 × 275,279.88
  4. Step 4: Simplify right side
    559,743.65x = 231,203,560,384.15
  5. Step 5: Solve for x
    x = 231,203,560,384.15/559,743.65
  6. Step 6: Final answer
    x = 413,052.59

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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.