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Finding the Fourth Proportional to 404,621.18, 606,737.84 and 191,211.42

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Solution

The fourth proportional to 404,621.18, 606,737.84 and 191,211.42 is: 286,725.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,621.18 : 606,737.84 = 191,211.42 : x
  2. Step 2: Convert to fraction form
    404,621.18/606,737.84 = 191,211.42/x
  3. Step 3: Cross multiply
    404,621.18x = 606,737.84 × 191,211.42
  4. Step 4: Simplify right side
    404,621.18x = 116,015,202,998.08
  5. Step 5: Solve for x
    x = 116,015,202,998.08/404,621.18
  6. Step 6: Final answer
    x = 286,725.49

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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.