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Finding the Fourth Proportional to 801,612.36, 1,203,228.84 and 711,021.84

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Solution

The fourth proportional to 801,612.36, 1,203,228.84 and 711,021.84 is: 1,067,251.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,612.36 : 1,203,228.84 = 711,021.84 : x
  2. Step 2: Convert to fraction form
    801,612.36/1,203,228.84 = 711,021.84/x
  3. Step 3: Cross multiply
    801,612.36x = 1,203,228.84 × 711,021.84
  4. Step 4: Simplify right side
    801,612.36x = 855,521,983,757.87
  5. Step 5: Solve for x
    x = 855,521,983,757.87/801,612.36
  6. Step 6: Final answer
    x = 1,067,251.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.