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Finding the Fourth Proportional to 426,870.96, 640,331.46 and 160,633.77

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Solution

The fourth proportional to 426,870.96, 640,331.46 and 160,633.77 is: 240,960.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,870.96 : 640,331.46 = 160,633.77 : x
  2. Step 2: Convert to fraction form
    426,870.96/640,331.46 = 160,633.77/x
  3. Step 3: Cross multiply
    426,870.96x = 640,331.46 × 160,633.77
  4. Step 4: Simplify right side
    426,870.96x = 102,858,856,469.40
  5. Step 5: Solve for x
    x = 102,858,856,469.40/426,870.96
  6. Step 6: Final answer
    x = 240,960.07

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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.