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Finding the Fourth Proportional to 603,748.62, 905,653.89 and 154,473.30

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Solution

The fourth proportional to 603,748.62, 905,653.89 and 154,473.30 is: 231,717.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,748.62 : 905,653.89 = 154,473.30 : x
  2. Step 2: Convert to fraction form
    603,748.62/905,653.89 = 154,473.30/x
  3. Step 3: Cross multiply
    603,748.62x = 905,653.89 × 154,473.30
  4. Step 4: Simplify right side
    603,748.62x = 139,899,345,046.14
  5. Step 5: Solve for x
    x = 139,899,345,046.14/603,748.62
  6. Step 6: Final answer
    x = 231,717.87

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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.