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Finding the Fourth Proportional to 340,140.92, 469,413.86 and 194,970.86

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Solution

The fourth proportional to 340,140.92, 469,413.86 and 194,970.86 is: 269,070.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,140.92 : 469,413.86 = 194,970.86 : x
  2. Step 2: Convert to fraction form
    340,140.92/469,413.86 = 194,970.86/x
  3. Step 3: Cross multiply
    340,140.92x = 469,413.86 × 194,970.86
  4. Step 4: Simplify right side
    340,140.92x = 91,522,022,418.50
  5. Step 5: Solve for x
    x = 91,522,022,418.50/340,140.92
  6. Step 6: Final answer
    x = 269,070.90

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1.5x scale

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.