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Finding the Fourth Proportional to 644,509.53, 966,813.51 and 195,267.61

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Solution

The fourth proportional to 644,509.53, 966,813.51 and 195,267.61 is: 292,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,509.53 : 966,813.51 = 195,267.61 : x
  2. Step 2: Convert to fraction form
    644,509.53/966,813.51 = 195,267.61/x
  3. Step 3: Cross multiply
    644,509.53x = 966,813.51 × 195,267.61
  4. Step 4: Simplify right side
    644,509.53x = 188,787,363,413.41
  5. Step 5: Solve for x
    x = 188,787,363,413.41/644,509.53
  6. Step 6: Final answer
    x = 292,916.33

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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.