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Finding the Fourth Proportional to 444,838.60, 667,257.90 and 415,095.40

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Solution

The fourth proportional to 444,838.60, 667,257.90 and 415,095.40 is: 622,643.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,838.60 : 667,257.90 = 415,095.40 : x
  2. Step 2: Convert to fraction form
    444,838.60/667,257.90 = 415,095.40/x
  3. Step 3: Cross multiply
    444,838.60x = 667,257.90 × 415,095.40
  4. Step 4: Simplify right side
    444,838.60x = 276,975,684,903.66
  5. Step 5: Solve for x
    x = 276,975,684,903.66/444,838.60
  6. Step 6: Final answer
    x = 622,643.10

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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.