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Finding the Fourth Proportional to 373,905.20, 560,080.20 and 311,697.20

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Solution

The fourth proportional to 373,905.20, 560,080.20 and 311,697.20 is: 466,897.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,905.20 : 560,080.20 = 311,697.20 : x
  2. Step 2: Convert to fraction form
    373,905.20/560,080.20 = 311,697.20/x
  3. Step 3: Cross multiply
    373,905.20x = 560,080.20 × 311,697.20
  4. Step 4: Simplify right side
    373,905.20x = 174,575,430,115.44
  5. Step 5: Solve for x
    x = 174,575,430,115.44/373,905.20
  6. Step 6: Final answer
    x = 466,897.57

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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.