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Finding the Fourth Proportional to 291,407.22, 437,408.97 and 240,644.55

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Solution

The fourth proportional to 291,407.22, 437,408.97 and 240,644.55 is: 361,213.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,407.22 : 437,408.97 = 240,644.55 : x
  2. Step 2: Convert to fraction form
    291,407.22/437,408.97 = 240,644.55/x
  3. Step 3: Cross multiply
    291,407.22x = 437,408.97 × 240,644.55
  4. Step 4: Simplify right side
    291,407.22x = 105,260,084,751.61
  5. Step 5: Solve for x
    x = 105,260,084,751.61/291,407.22
  6. Step 6: Final answer
    x = 361,213.03

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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.