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Finding the Fourth Proportional to 482,915.57, 666,288.45 and 301,811.47

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Solution

The fourth proportional to 482,915.57, 666,288.45 and 301,811.47 is: 416,415.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,915.57 : 666,288.45 = 301,811.47 : x
  2. Step 2: Convert to fraction form
    482,915.57/666,288.45 = 301,811.47/x
  3. Step 3: Cross multiply
    482,915.57x = 666,288.45 × 301,811.47
  4. Step 4: Simplify right side
    482,915.57x = 201,093,494,872.80
  5. Step 5: Solve for x
    x = 201,093,494,872.80/482,915.57
  6. Step 6: Final answer
    x = 416,415.43

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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.