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Finding the Fourth Proportional to 437,441.78, 603,669.60 and 236,237.78

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Solution

The fourth proportional to 437,441.78, 603,669.60 and 236,237.78 is: 326,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,441.78 : 603,669.60 = 236,237.78 : x
  2. Step 2: Convert to fraction form
    437,441.78/603,669.60 = 236,237.78/x
  3. Step 3: Cross multiply
    437,441.78x = 603,669.60 × 236,237.78
  4. Step 4: Simplify right side
    437,441.78x = 142,609,566,157.49
  5. Step 5: Solve for x
    x = 142,609,566,157.49/437,441.78
  6. Step 6: Final answer
    x = 326,008.11

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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.