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Finding the Fourth Proportional to 906,236.72, 1,359,267.18 and 275,156

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Solution

The fourth proportional to 906,236.72, 1,359,267.18 and 275,156 is: 412,707.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,236.72 : 1,359,267.18 = 275,156 : x
  2. Step 2: Convert to fraction form
    906,236.72/1,359,267.18 = 275,156/x
  3. Step 3: Cross multiply
    906,236.72x = 1,359,267.18 × 275,156
  4. Step 4: Simplify right side
    906,236.72x = 374,010,520,180.08
  5. Step 5: Solve for x
    x = 374,010,520,180.08/906,236.72
  6. Step 6: Final answer
    x = 412,707.31

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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.