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Finding the Fourth Proportional to 481,810.11, 664,870.17 and 266,937.36

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Solution

The fourth proportional to 481,810.11, 664,870.17 and 266,937.36 is: 368,358.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,810.11 : 664,870.17 = 266,937.36 : x
  2. Step 2: Convert to fraction form
    481,810.11/664,870.17 = 266,937.36/x
  3. Step 3: Cross multiply
    481,810.11x = 664,870.17 × 266,937.36
  4. Step 4: Simplify right side
    481,810.11x = 177,478,687,922.55
  5. Step 5: Solve for x
    x = 177,478,687,922.55/481,810.11
  6. Step 6: Final answer
    x = 368,358.16

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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.