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Finding the Fourth Proportional to 303,413.30, 425,400.70 and 303,413.30

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Solution

The fourth proportional to 303,413.30, 425,400.70 and 303,413.30 is: 425,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,413.30 : 425,400.70 = 303,413.30 : x
  2. Step 2: Convert to fraction form
    303,413.30/425,400.70 = 303,413.30/x
  3. Step 3: Cross multiply
    303,413.30x = 425,400.70 × 303,413.30
  4. Step 4: Simplify right side
    303,413.30x = 129,072,230,209.31
  5. Step 5: Solve for x
    x = 129,072,230,209.31/303,413.30
  6. Step 6: Final answer
    x = 425,400.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.