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Finding the Fourth Proportional to 312,234.99, 430,894.72 and 191,352.92

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Solution

The fourth proportional to 312,234.99, 430,894.72 and 191,352.92 is: 264,073.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,234.99 : 430,894.72 = 191,352.92 : x
  2. Step 2: Convert to fraction form
    312,234.99/430,894.72 = 191,352.92/x
  3. Step 3: Cross multiply
    312,234.99x = 430,894.72 × 191,352.92
  4. Step 4: Simplify right side
    312,234.99x = 82,452,962,884.58
  5. Step 5: Solve for x
    x = 82,452,962,884.58/312,234.99
  6. Step 6: Final answer
    x = 264,073.42

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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.