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Finding the Fourth Proportional to 444,804.20, 667,206.30 and 429,057.80

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Solution

The fourth proportional to 444,804.20, 667,206.30 and 429,057.80 is: 643,586.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,804.20 : 667,206.30 = 429,057.80 : x
  2. Step 2: Convert to fraction form
    444,804.20/667,206.30 = 429,057.80/x
  3. Step 3: Cross multiply
    444,804.20x = 667,206.30 × 429,057.80
  4. Step 4: Simplify right side
    444,804.20x = 286,270,067,224.14
  5. Step 5: Solve for x
    x = 286,270,067,224.14/444,804.20
  6. Step 6: Final answer
    x = 643,586.70

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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.