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Finding the Fourth Proportional to 444,281.25, 612,470.43 and 316,735.41

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Solution

The fourth proportional to 444,281.25, 612,470.43 and 316,735.41 is: 436,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,281.25 : 612,470.43 = 316,735.41 : x
  2. Step 2: Convert to fraction form
    444,281.25/612,470.43 = 316,735.41/x
  3. Step 3: Cross multiply
    444,281.25x = 612,470.43 × 316,735.41
  4. Step 4: Simplify right side
    444,281.25x = 193,991,072,758.93
  5. Step 5: Solve for x
    x = 193,991,072,758.93/444,281.25
  6. Step 6: Final answer
    x = 436,640.24

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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.