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Finding the Fourth Proportional to 492,646.57, 679,794.51 and 277,773.82

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Solution

The fourth proportional to 492,646.57, 679,794.51 and 277,773.82 is: 383,295.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,646.57 : 679,794.51 = 277,773.82 : x
  2. Step 2: Convert to fraction form
    492,646.57/679,794.51 = 277,773.82/x
  3. Step 3: Cross multiply
    492,646.57x = 679,794.51 × 277,773.82
  4. Step 4: Simplify right side
    492,646.57x = 188,829,117,857.73
  5. Step 5: Solve for x
    x = 188,829,117,857.73/492,646.57
  6. Step 6: Final answer
    x = 383,295.31

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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.