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Finding the Fourth Proportional to 444,903.60, 667,574.10 and 208,205.40

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Solution

The fourth proportional to 444,903.60, 667,574.10 and 208,205.40 is: 312,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,903.60 : 667,574.10 = 208,205.40 : x
  2. Step 2: Convert to fraction form
    444,903.60/667,574.10 = 208,205.40/x
  3. Step 3: Cross multiply
    444,903.60x = 667,574.10 × 208,205.40
  4. Step 4: Simplify right side
    444,903.60x = 138,992,532,520.14
  5. Step 5: Solve for x
    x = 138,992,532,520.14/444,903.60
  6. Step 6: Final answer
    x = 312,410.45

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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.