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Finding the Fourth Proportional to 606,413.40, 909,620.10 and 185,634.60

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Solution

The fourth proportional to 606,413.40, 909,620.10 and 185,634.60 is: 278,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,413.40 : 909,620.10 = 185,634.60 : x
  2. Step 2: Convert to fraction form
    606,413.40/909,620.10 = 185,634.60/x
  3. Step 3: Cross multiply
    606,413.40x = 909,620.10 × 185,634.60
  4. Step 4: Simplify right side
    606,413.40x = 168,856,963,415.46
  5. Step 5: Solve for x
    x = 168,856,963,415.46/606,413.40
  6. Step 6: Final answer
    x = 278,451.90

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1.5x scale

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.