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Finding the Fourth Proportional to 481,648.60, 664,675.11 and 266,802.58

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Solution

The fourth proportional to 481,648.60, 664,675.11 and 266,802.58 is: 368,187.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,648.60 : 664,675.11 = 266,802.58 : x
  2. Step 2: Convert to fraction form
    481,648.60/664,675.11 = 266,802.58/x
  3. Step 3: Cross multiply
    481,648.60x = 664,675.11 × 266,802.58
  4. Step 4: Simplify right side
    481,648.60x = 177,337,032,548.10
  5. Step 5: Solve for x
    x = 177,337,032,548.10/481,648.60
  6. Step 6: Final answer
    x = 368,187.58

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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.