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Finding the Fourth Proportional to 503,911.05, 695,413.19 and 274,475.24

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Solution

The fourth proportional to 503,911.05, 695,413.19 and 274,475.24 is: 378,784.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,911.05 : 695,413.19 = 274,475.24 : x
  2. Step 2: Convert to fraction form
    503,911.05/695,413.19 = 274,475.24/x
  3. Step 3: Cross multiply
    503,911.05x = 695,413.19 × 274,475.24
  4. Step 4: Simplify right side
    503,911.05x = 190,873,697,374.97
  5. Step 5: Solve for x
    x = 190,873,697,374.97/503,911.05
  6. Step 6: Final answer
    x = 378,784.50

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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.