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Finding the Fourth Proportional to 603,730.70, 905,586.83 and 154,447.77

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Solution

The fourth proportional to 603,730.70, 905,586.83 and 154,447.77 is: 231,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,730.70 : 905,586.83 = 154,447.77 : x
  2. Step 2: Convert to fraction form
    603,730.70/905,586.83 = 154,447.77/x
  3. Step 3: Cross multiply
    603,730.70x = 905,586.83 × 154,447.77
  4. Step 4: Simplify right side
    603,730.70x = 139,865,866,434.87
  5. Step 5: Solve for x
    x = 139,865,866,434.87/603,730.70
  6. Step 6: Final answer
    x = 231,669.30

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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.