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Finding the Fourth Proportional to 322,413.40, 444,895.15 and 186,426.76

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Solution

The fourth proportional to 322,413.40, 444,895.15 and 186,426.76 is: 257,248.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,413.40 : 444,895.15 = 186,426.76 : x
  2. Step 2: Convert to fraction form
    322,413.40/444,895.15 = 186,426.76/x
  3. Step 3: Cross multiply
    322,413.40x = 444,895.15 × 186,426.76
  4. Step 4: Simplify right side
    322,413.40x = 82,940,361,354.21
  5. Step 5: Solve for x
    x = 82,940,361,354.21/322,413.40
  6. Step 6: Final answer
    x = 257,248.49

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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.