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Finding the Fourth Proportional to 515,539.49, 773,377.17 and 191,283.49

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Solution

The fourth proportional to 515,539.49, 773,377.17 and 191,283.49 is: 286,950.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,539.49 : 773,377.17 = 191,283.49 : x
  2. Step 2: Convert to fraction form
    515,539.49/773,377.17 = 191,283.49/x
  3. Step 3: Cross multiply
    515,539.49x = 773,377.17 × 191,283.49
  4. Step 4: Simplify right side
    515,539.49x = 147,934,284,413.33
  5. Step 5: Solve for x
    x = 147,934,284,413.33/515,539.49
  6. Step 6: Final answer
    x = 286,950.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.