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Finding the Fourth Proportional to 341,234.20, 512,081.70 and 191,474.20

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Solution

The fourth proportional to 341,234.20, 512,081.70 and 191,474.20 is: 287,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,234.20 : 512,081.70 = 191,474.20 : x
  2. Step 2: Convert to fraction form
    341,234.20/512,081.70 = 191,474.20/x
  3. Step 3: Cross multiply
    341,234.20x = 512,081.70 × 191,474.20
  4. Step 4: Simplify right side
    341,234.20x = 98,050,433,842.14
  5. Step 5: Solve for x
    x = 98,050,433,842.14/341,234.20
  6. Step 6: Final answer
    x = 287,340.58

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1.5x scale

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.