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Finding the Fourth Proportional to 492,036.56, 679,007.49 and 277,245.82

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Solution

The fourth proportional to 492,036.56, 679,007.49 and 277,245.82 is: 382,597.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,036.56 : 679,007.49 = 277,245.82 : x
  2. Step 2: Convert to fraction form
    492,036.56/679,007.49 = 277,245.82/x
  3. Step 3: Cross multiply
    492,036.56x = 679,007.49 × 277,245.82
  4. Step 4: Simplify right side
    492,036.56x = 188,251,984,956.15
  5. Step 5: Solve for x
    x = 188,251,984,956.15/492,036.56
  6. Step 6: Final answer
    x = 382,597.56

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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.