Home / 644,511.78-966,816.89-195,269.87

Finding the Fourth Proportional to 644,511.78, 966,816.89 and 195,269.87

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Solution

The fourth proportional to 644,511.78, 966,816.89 and 195,269.87 is: 292,919.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,511.78 : 966,816.89 = 195,269.87 : x
  2. Step 2: Convert to fraction form
    644,511.78/966,816.89 = 195,269.87/x
  3. Step 3: Cross multiply
    644,511.78x = 966,816.89 × 195,269.87
  4. Step 4: Simplify right side
    644,511.78x = 188,790,208,424.10
  5. Step 5: Solve for x
    x = 188,790,208,424.10/644,511.78
  6. Step 6: Final answer
    x = 292,919.72

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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.