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Finding the Fourth Proportional to 383,892.75, 529,941.87 and 247,992.96

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Solution

The fourth proportional to 383,892.75, 529,941.87 and 247,992.96 is: 342,340.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,892.75 : 529,941.87 = 247,992.96 : x
  2. Step 2: Convert to fraction form
    383,892.75/529,941.87 = 247,992.96/x
  3. Step 3: Cross multiply
    383,892.75x = 529,941.87 × 247,992.96
  4. Step 4: Simplify right side
    383,892.75x = 131,421,852,969.24
  5. Step 5: Solve for x
    x = 131,421,852,969.24/383,892.75
  6. Step 6: Final answer
    x = 342,340.02

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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.