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Finding the Fourth Proportional to 710,729.36, 981,083.04 and 481,174.40

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Solution

The fourth proportional to 710,729.36, 981,083.04 and 481,174.40 is: 664,207.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,729.36 : 981,083.04 = 481,174.40 : x
  2. Step 2: Convert to fraction form
    710,729.36/981,083.04 = 481,174.40/x
  3. Step 3: Cross multiply
    710,729.36x = 981,083.04 × 481,174.40
  4. Step 4: Simplify right side
    710,729.36x = 472,072,043,122.18
  5. Step 5: Solve for x
    x = 472,072,043,122.18/710,729.36
  6. Step 6: Final answer
    x = 664,207.88

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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.