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Finding the Fourth Proportional to 603,729.70, 905,585.33 and 154,446.77

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Solution

The fourth proportional to 603,729.70, 905,585.33 and 154,446.77 is: 231,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,729.70 : 905,585.33 = 154,446.77 : x
  2. Step 2: Convert to fraction form
    603,729.70/905,585.33 = 154,446.77/x
  3. Step 3: Cross multiply
    603,729.70x = 905,585.33 × 154,446.77
  4. Step 4: Simplify right side
    603,729.70x = 139,864,731,827.96
  5. Step 5: Solve for x
    x = 139,864,731,827.96/603,729.70
  6. Step 6: Final answer
    x = 231,667.80

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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.