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Finding the Fourth Proportional to 492,726.24, 679,960.78 and 277,864.73

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Solution

The fourth proportional to 492,726.24, 679,960.78 and 277,864.73 is: 383,452.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,726.24 : 679,960.78 = 277,864.73 : x
  2. Step 2: Convert to fraction form
    492,726.24/679,960.78 = 277,864.73/x
  3. Step 3: Cross multiply
    492,726.24x = 679,960.78 × 277,864.73
  4. Step 4: Simplify right side
    492,726.24x = 188,937,117,000.68
  5. Step 5: Solve for x
    x = 188,937,117,000.68/492,726.24
  6. Step 6: Final answer
    x = 383,452.52

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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.