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Finding the Fourth Proportional to 492,856.96, 680,127.36 and 277,993.92

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Solution

The fourth proportional to 492,856.96, 680,127.36 and 277,993.92 is: 383,623.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,856.96 : 680,127.36 = 277,993.92 : x
  2. Step 2: Convert to fraction form
    492,856.96/680,127.36 = 277,993.92/x
  3. Step 3: Cross multiply
    492,856.96x = 680,127.36 × 277,993.92
  4. Step 4: Simplify right side
    492,856.96x = 189,071,270,905.65
  5. Step 5: Solve for x
    x = 189,071,270,905.65/492,856.96
  6. Step 6: Final answer
    x = 383,623.01

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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.