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Finding the Fourth Proportional to 309,366.96, 426,912.12 and 175,231.92

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Solution

The fourth proportional to 309,366.96, 426,912.12 and 175,231.92 is: 241,811.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,366.96 : 426,912.12 = 175,231.92 : x
  2. Step 2: Convert to fraction form
    309,366.96/426,912.12 = 175,231.92/x
  3. Step 3: Cross multiply
    309,366.96x = 426,912.12 × 175,231.92
  4. Step 4: Simplify right side
    309,366.96x = 74,808,630,458.87
  5. Step 5: Solve for x
    x = 74,808,630,458.87/309,366.96
  6. Step 6: Final answer
    x = 241,811.96

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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.