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Finding the Fourth Proportional to 475,930.88, 656,779.20 and 274,722.56

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Solution

The fourth proportional to 475,930.88, 656,779.20 and 274,722.56 is: 379,114.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,930.88 : 656,779.20 = 274,722.56 : x
  2. Step 2: Convert to fraction form
    475,930.88/656,779.20 = 274,722.56/x
  3. Step 3: Cross multiply
    475,930.88x = 656,779.20 × 274,722.56
  4. Step 4: Simplify right side
    475,930.88x = 180,432,063,178.75
  5. Step 5: Solve for x
    x = 180,432,063,178.75/475,930.88
  6. Step 6: Final answer
    x = 379,114.01

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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.