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Finding the Fourth Proportional to 444,956.88, 667,379.68 and 145,412.40

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Solution

The fourth proportional to 444,956.88, 667,379.68 and 145,412.40 is: 218,100.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,956.88 : 667,379.68 = 145,412.40 : x
  2. Step 2: Convert to fraction form
    444,956.88/667,379.68 = 145,412.40/x
  3. Step 3: Cross multiply
    444,956.88x = 667,379.68 × 145,412.40
  4. Step 4: Simplify right side
    444,956.88x = 97,045,280,980.03
  5. Step 5: Solve for x
    x = 97,045,280,980.03/444,956.88
  6. Step 6: Final answer
    x = 218,100.42

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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.