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Finding the Fourth Proportional to 481,255.71, 664,124.82 and 266,391.15

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Solution

The fourth proportional to 481,255.71, 664,124.82 and 266,391.15 is: 367,615.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,255.71 : 664,124.82 = 266,391.15 : x
  2. Step 2: Convert to fraction form
    481,255.71/664,124.82 = 266,391.15/x
  3. Step 3: Cross multiply
    481,255.71x = 664,124.82 × 266,391.15
  4. Step 4: Simplify right side
    481,255.71x = 176,916,974,543.34
  5. Step 5: Solve for x
    x = 176,916,974,543.34/481,255.71
  6. Step 6: Final answer
    x = 367,615.33

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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.