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Finding the Fourth Proportional to 643,492.92, 964,665.80 and 244,413.95

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Solution

The fourth proportional to 643,492.92, 964,665.80 and 244,413.95 is: 366,403.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,492.92 : 964,665.80 = 244,413.95 : x
  2. Step 2: Convert to fraction form
    643,492.92/964,665.80 = 244,413.95/x
  3. Step 3: Cross multiply
    643,492.92x = 964,665.80 × 244,413.95
  4. Step 4: Simplify right side
    643,492.92x = 235,777,774,395.62
  5. Step 5: Solve for x
    x = 235,777,774,395.62/643,492.92
  6. Step 6: Final answer
    x = 366,403.06

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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.