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Finding the Fourth Proportional to 426,169.44, 639,323.52 and 159,950.88

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Solution

The fourth proportional to 426,169.44, 639,323.52 and 159,950.88 is: 239,952.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,169.44 : 639,323.52 = 159,950.88 : x
  2. Step 2: Convert to fraction form
    426,169.44/639,323.52 = 159,950.88/x
  3. Step 3: Cross multiply
    426,169.44x = 639,323.52 × 159,950.88
  4. Step 4: Simplify right side
    426,169.44x = 102,260,359,628.70
  5. Step 5: Solve for x
    x = 102,260,359,628.70/426,169.44
  6. Step 6: Final answer
    x = 239,952.35

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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.