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Finding the Fourth Proportional to 383,753.89, 529,474.08 and 247,793.57

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Solution

The fourth proportional to 383,753.89, 529,474.08 and 247,793.57 is: 341,886.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,753.89 : 529,474.08 = 247,793.57 : x
  2. Step 2: Convert to fraction form
    383,753.89/529,474.08 = 247,793.57/x
  3. Step 3: Cross multiply
    383,753.89x = 529,474.08 × 247,793.57
  4. Step 4: Simplify right side
    383,753.89x = 131,200,272,505.67
  5. Step 5: Solve for x
    x = 131,200,272,505.67/383,753.89
  6. Step 6: Final answer
    x = 341,886.50

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1.5x scale

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.