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Finding the Fourth Proportional to 437,639, 603,941.82 and 236,435

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Solution

The fourth proportional to 437,639, 603,941.82 and 236,435 is: 326,280.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,639 : 603,941.82 = 236,435 : x
  2. Step 2: Convert to fraction form
    437,639/603,941.82 = 236,435/x
  3. Step 3: Cross multiply
    437,639x = 603,941.82 × 236,435
  4. Step 4: Simplify right side
    437,639x = 142,792,984,211.70
  5. Step 5: Solve for x
    x = 142,792,984,211.70/437,639
  6. Step 6: Final answer
    x = 326,280.30

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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.