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Finding the Fourth Proportional to 481,472.03, 664,423.20 and 266,607.47

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Solution

The fourth proportional to 481,472.03, 664,423.20 and 266,607.47 is: 367,913.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,472.03 : 664,423.20 = 266,607.47 : x
  2. Step 2: Convert to fraction form
    481,472.03/664,423.20 = 266,607.47/x
  3. Step 3: Cross multiply
    481,472.03x = 664,423.20 × 266,607.47
  4. Step 4: Simplify right side
    481,472.03x = 177,140,190,022.36
  5. Step 5: Solve for x
    x = 177,140,190,022.36/481,472.03
  6. Step 6: Final answer
    x = 367,913.77

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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.