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Finding the Fourth Proportional to 404,382.90, 606,703.95 and 271,413.30

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Solution

The fourth proportional to 404,382.90, 606,703.95 and 271,413.30 is: 407,206.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,382.90 : 606,703.95 = 271,413.30 : x
  2. Step 2: Convert to fraction form
    404,382.90/606,703.95 = 271,413.30/x
  3. Step 3: Cross multiply
    404,382.90x = 606,703.95 × 271,413.30
  4. Step 4: Simplify right side
    404,382.90x = 164,667,521,192.54
  5. Step 5: Solve for x
    x = 164,667,521,192.54/404,382.90
  6. Step 6: Final answer
    x = 407,206.93

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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.