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Finding the Fourth Proportional to 416,400.60, 574,632.18 and 225,413.94

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Solution

The fourth proportional to 416,400.60, 574,632.18 and 225,413.94 is: 311,070.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,400.60 : 574,632.18 = 225,413.94 : x
  2. Step 2: Convert to fraction form
    416,400.60/574,632.18 = 225,413.94/x
  3. Step 3: Cross multiply
    416,400.60x = 574,632.18 × 225,413.94
  4. Step 4: Simplify right side
    416,400.60x = 129,530,103,744.59
  5. Step 5: Solve for x
    x = 129,530,103,744.59/416,400.60
  6. Step 6: Final answer
    x = 311,070.89

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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.