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Finding the Fourth Proportional to 444,251.75, 612,429.71 and 316,705.91

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Solution

The fourth proportional to 444,251.75, 612,429.71 and 316,705.91 is: 436,599.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,251.75 : 612,429.71 = 316,705.91 : x
  2. Step 2: Convert to fraction form
    444,251.75/612,429.71 = 316,705.91/x
  3. Step 3: Cross multiply
    444,251.75x = 612,429.71 × 316,705.91
  4. Step 4: Simplify right side
    444,251.75x = 193,960,106,346.20
  5. Step 5: Solve for x
    x = 193,960,106,346.20/444,251.75
  6. Step 6: Final answer
    x = 436,599.54

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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.