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Finding the Fourth Proportional to 644,683.85, 967,057.88 and 245,355.57

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Solution

The fourth proportional to 644,683.85, 967,057.88 and 245,355.57 is: 368,045.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,683.85 : 967,057.88 = 245,355.57 : x
  2. Step 2: Convert to fraction form
    644,683.85/967,057.88 = 245,355.57/x
  3. Step 3: Cross multiply
    644,683.85x = 967,057.88 × 245,355.57
  4. Step 4: Simplify right side
    644,683.85x = 237,273,036,143.61
  5. Step 5: Solve for x
    x = 237,273,036,143.61/644,683.85
  6. Step 6: Final answer
    x = 368,045.57

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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.