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Finding the Fourth Proportional to 559,671.63, 839,425.42 and 275,285.84

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Solution

The fourth proportional to 559,671.63, 839,425.42 and 275,285.84 is: 412,888.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,671.63 : 839,425.42 = 275,285.84 : x
  2. Step 2: Convert to fraction form
    559,671.63/839,425.42 = 275,285.84/x
  3. Step 3: Cross multiply
    559,671.63x = 839,425.42 × 275,285.84
  4. Step 4: Simplify right side
    559,671.63x = 231,081,932,730.80
  5. Step 5: Solve for x
    x = 231,081,932,730.80/559,671.63
  6. Step 6: Final answer
    x = 412,888.42

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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.