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Finding the Fourth Proportional to 893,896.40, 1,339,807.80 and 361,067.60

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Solution

The fourth proportional to 893,896.40, 1,339,807.80 and 361,067.60 is: 541,182.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,896.40 : 1,339,807.80 = 361,067.60 : x
  2. Step 2: Convert to fraction form
    893,896.40/1,339,807.80 = 361,067.60/x
  3. Step 3: Cross multiply
    893,896.40x = 1,339,807.80 × 361,067.60
  4. Step 4: Simplify right side
    893,896.40x = 483,761,186,807.28
  5. Step 5: Solve for x
    x = 483,761,186,807.28/893,896.40
  6. Step 6: Final answer
    x = 541,182.61

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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.