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Finding the Fourth Proportional to 629,885, 944,830.96 and 156,570.36

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Solution

The fourth proportional to 629,885, 944,830.96 and 156,570.36 is: 234,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,885 : 944,830.96 = 156,570.36 : x
  2. Step 2: Convert to fraction form
    629,885/944,830.96 = 156,570.36/x
  3. Step 3: Cross multiply
    629,885x = 944,830.96 × 156,570.36
  4. Step 4: Simplify right side
    629,885x = 147,932,523,546.35
  5. Step 5: Solve for x
    x = 147,932,523,546.35/629,885
  6. Step 6: Final answer
    x = 234,856.40

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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.