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Finding the Fourth Proportional to 503,911.56, 695,413.88 and 274,475.74

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Solution

The fourth proportional to 503,911.56, 695,413.88 and 274,475.74 is: 378,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,911.56 : 695,413.88 = 274,475.74 : x
  2. Step 2: Convert to fraction form
    503,911.56/695,413.88 = 274,475.74/x
  3. Step 3: Cross multiply
    503,911.56x = 695,413.88 × 274,475.74
  4. Step 4: Simplify right side
    503,911.56x = 190,874,239,319.27
  5. Step 5: Solve for x
    x = 190,874,239,319.27/503,911.56
  6. Step 6: Final answer
    x = 378,785.20

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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.