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Finding the Fourth Proportional to 495,396.60, 743,093.53 and 140,413.70

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Solution

The fourth proportional to 495,396.60, 743,093.53 and 140,413.70 is: 210,620.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,396.60 : 743,093.53 = 140,413.70 : x
  2. Step 2: Convert to fraction form
    495,396.60/743,093.53 = 140,413.70/x
  3. Step 3: Cross multiply
    495,396.60x = 743,093.53 × 140,413.70
  4. Step 4: Simplify right side
    495,396.60x = 104,340,511,993.36
  5. Step 5: Solve for x
    x = 104,340,511,993.36/495,396.60
  6. Step 6: Final answer
    x = 210,620.16

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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.