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Finding the Fourth Proportional to 492,655.24, 679,863.12 and 277,793.77

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Solution

The fourth proportional to 492,655.24, 679,863.12 and 277,793.77 is: 383,354.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,655.24 : 679,863.12 = 277,793.77 : x
  2. Step 2: Convert to fraction form
    492,655.24/679,863.12 = 277,793.77/x
  3. Step 3: Cross multiply
    492,655.24x = 679,863.12 × 277,793.77
  4. Step 4: Simplify right side
    492,655.24x = 188,861,736,416.54
  5. Step 5: Solve for x
    x = 188,861,736,416.54/492,655.24
  6. Step 6: Final answer
    x = 383,354.77

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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.