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Finding the Fourth Proportional to 647,652.30, 971,551.35 and 198,369.60

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Solution

The fourth proportional to 647,652.30, 971,551.35 and 198,369.60 is: 297,576.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,652.30 : 971,551.35 = 198,369.60 : x
  2. Step 2: Convert to fraction form
    647,652.30/971,551.35 = 198,369.60/x
  3. Step 3: Cross multiply
    647,652.30x = 971,551.35 × 198,369.60
  4. Step 4: Simplify right side
    647,652.30x = 192,726,252,678.96
  5. Step 5: Solve for x
    x = 192,726,252,678.96/647,652.30
  6. Step 6: Final answer
    x = 297,576.73

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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.