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Finding the Fourth Proportional to 483,915.60, 667,784.34 and 269,039.88

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Solution

The fourth proportional to 483,915.60, 667,784.34 and 269,039.88 is: 371,264.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,915.60 : 667,784.34 = 269,039.88 : x
  2. Step 2: Convert to fraction form
    483,915.60/667,784.34 = 269,039.88/x
  3. Step 3: Cross multiply
    483,915.60x = 667,784.34 × 269,039.88
  4. Step 4: Simplify right side
    483,915.60x = 179,660,618,699.48
  5. Step 5: Solve for x
    x = 179,660,618,699.48/483,915.60
  6. Step 6: Final answer
    x = 371,264.37

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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.