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Finding the Fourth Proportional to 326,157.35, 488,834.46 and 155,468.84

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Solution

The fourth proportional to 326,157.35, 488,834.46 and 155,468.84 is: 233,011.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,157.35 : 488,834.46 = 155,468.84 : x
  2. Step 2: Convert to fraction form
    326,157.35/488,834.46 = 155,468.84/x
  3. Step 3: Cross multiply
    326,157.35x = 488,834.46 × 155,468.84
  4. Step 4: Simplify right side
    326,157.35x = 75,998,524,004.05
  5. Step 5: Solve for x
    x = 75,998,524,004.05/326,157.35
  6. Step 6: Final answer
    x = 233,011.84

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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.