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Finding the Fourth Proportional to 644,508.85, 966,812.48 and 195,266.93

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Solution

The fourth proportional to 644,508.85, 966,812.48 and 195,266.93 is: 292,915.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,508.85 : 966,812.48 = 195,266.93 : x
  2. Step 2: Convert to fraction form
    644,508.85/966,812.48 = 195,266.93/x
  3. Step 3: Cross multiply
    644,508.85x = 966,812.48 × 195,266.93
  4. Step 4: Simplify right side
    644,508.85x = 188,786,499,044.89
  5. Step 5: Solve for x
    x = 188,786,499,044.89/644,508.85
  6. Step 6: Final answer
    x = 292,915.29

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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.