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Finding the Fourth Proportional to 444,285.25, 612,475.96 and 316,739.41

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Solution

The fourth proportional to 444,285.25, 612,475.96 and 316,739.41 is: 436,645.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,285.25 : 612,475.96 = 316,739.41 : x
  2. Step 2: Convert to fraction form
    444,285.25/612,475.96 = 316,739.41/x
  3. Step 3: Cross multiply
    444,285.25x = 612,475.96 × 316,739.41
  4. Step 4: Simplify right side
    444,285.25x = 193,995,274,209.58
  5. Step 5: Solve for x
    x = 193,995,274,209.58/444,285.25
  6. Step 6: Final answer
    x = 436,645.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.