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Finding the Fourth Proportional to 481,909.71, 665,039.12 and 267,053.25

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Solution

The fourth proportional to 481,909.71, 665,039.12 and 267,053.25 is: 368,535.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,909.71 : 665,039.12 = 267,053.25 : x
  2. Step 2: Convert to fraction form
    481,909.71/665,039.12 = 267,053.25/x
  3. Step 3: Cross multiply
    481,909.71x = 665,039.12 × 267,053.25
  4. Step 4: Simplify right side
    481,909.71x = 177,600,857,037.87
  5. Step 5: Solve for x
    x = 177,600,857,037.87/481,909.71
  6. Step 6: Final answer
    x = 368,535.54

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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.