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Finding the Fourth Proportional to 444,888.40, 667,267.80 and 129,312.40

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Solution

The fourth proportional to 444,888.40, 667,267.80 and 129,312.40 is: 193,949.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,888.40 : 667,267.80 = 129,312.40 : x
  2. Step 2: Convert to fraction form
    444,888.40/667,267.80 = 129,312.40/x
  3. Step 3: Cross multiply
    444,888.40x = 667,267.80 × 129,312.40
  4. Step 4: Simplify right side
    444,888.40x = 86,286,000,660.72
  5. Step 5: Solve for x
    x = 86,286,000,660.72/444,888.40
  6. Step 6: Final answer
    x = 193,949.77

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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.