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Finding the Fourth Proportional to 492,783.67, 680,040.51 and 277,923.07

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Solution

The fourth proportional to 492,783.67, 680,040.51 and 277,923.07 is: 383,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,783.67 : 680,040.51 = 277,923.07 : x
  2. Step 2: Convert to fraction form
    492,783.67/680,040.51 = 277,923.07/x
  3. Step 3: Cross multiply
    492,783.67x = 680,040.51 × 277,923.07
  4. Step 4: Simplify right side
    492,783.67x = 188,998,942,863.36
  5. Step 5: Solve for x
    x = 188,998,942,863.36/492,783.67
  6. Step 6: Final answer
    x = 383,533.30

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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.