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Finding the Fourth Proportional to 426,367.40, 639,213.73 and 160,098.26

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Solution

The fourth proportional to 426,367.40, 639,213.73 and 160,098.26 is: 240,020.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,367.40 : 639,213.73 = 160,098.26 : x
  2. Step 2: Convert to fraction form
    426,367.40/639,213.73 = 160,098.26/x
  3. Step 3: Cross multiply
    426,367.40x = 639,213.73 × 160,098.26
  4. Step 4: Simplify right side
    426,367.40x = 102,337,002,344.80
  5. Step 5: Solve for x
    x = 102,337,002,344.80/426,367.40
  6. Step 6: Final answer
    x = 240,020.70

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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.