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Finding the Fourth Proportional to 492,294.92, 679,367.60 and 265,940.42

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Solution

The fourth proportional to 492,294.92, 679,367.60 and 265,940.42 is: 366,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,294.92 : 679,367.60 = 265,940.42 : x
  2. Step 2: Convert to fraction form
    492,294.92/679,367.60 = 265,940.42/x
  3. Step 3: Cross multiply
    492,294.92x = 679,367.60 × 265,940.42
  4. Step 4: Simplify right side
    492,294.92x = 180,671,301,850.27
  5. Step 5: Solve for x
    x = 180,671,301,850.27/492,294.92
  6. Step 6: Final answer
    x = 366,998.11

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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.