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Finding the Fourth Proportional to 938,318.58, 1,295,624.97 and 866,672.46

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Solution

The fourth proportional to 938,318.58, 1,295,624.97 and 866,672.46 is: 1,196,696.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,318.58 : 1,295,624.97 = 866,672.46 : x
  2. Step 2: Convert to fraction form
    938,318.58/1,295,624.97 = 866,672.46/x
  3. Step 3: Cross multiply
    938,318.58x = 1,295,624.97 × 866,672.46
  4. Step 4: Simplify right side
    938,318.58x = 1,122,882,479,987.33
  5. Step 5: Solve for x
    x = 1,122,882,479,987.33/938,318.58
  6. Step 6: Final answer
    x = 1,196,696.41

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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.