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Finding the Fourth Proportional to 437,638.50, 603,941.13 and 236,434.50

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Solution

The fourth proportional to 437,638.50, 603,941.13 and 236,434.50 is: 326,279.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,638.50 : 603,941.13 = 236,434.50 : x
  2. Step 2: Convert to fraction form
    437,638.50/603,941.13 = 236,434.50/x
  3. Step 3: Cross multiply
    437,638.50x = 603,941.13 × 236,434.50
  4. Step 4: Simplify right side
    437,638.50x = 142,792,519,100.99
  5. Step 5: Solve for x
    x = 142,792,519,100.99/437,638.50
  6. Step 6: Final answer
    x = 326,279.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.