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Finding the Fourth Proportional to 264,909.60, 397,364.40 and 247,413.60

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Solution

The fourth proportional to 264,909.60, 397,364.40 and 247,413.60 is: 371,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,909.60 : 397,364.40 = 247,413.60 : x
  2. Step 2: Convert to fraction form
    264,909.60/397,364.40 = 247,413.60/x
  3. Step 3: Cross multiply
    264,909.60x = 397,364.40 × 247,413.60
  4. Step 4: Simplify right side
    264,909.60x = 98,313,356,715.84
  5. Step 5: Solve for x
    x = 98,313,356,715.84/264,909.60
  6. Step 6: Final answer
    x = 371,120.40

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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.