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Finding the Fourth Proportional to 589,335.36, 813,282.24 and 321,063.36

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Solution

The fourth proportional to 589,335.36, 813,282.24 and 321,063.36 is: 443,067.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,335.36 : 813,282.24 = 321,063.36 : x
  2. Step 2: Convert to fraction form
    589,335.36/813,282.24 = 321,063.36/x
  3. Step 3: Cross multiply
    589,335.36x = 813,282.24 × 321,063.36
  4. Step 4: Simplify right side
    589,335.36x = 261,115,128,602.73
  5. Step 5: Solve for x
    x = 261,115,128,602.73/589,335.36
  6. Step 6: Final answer
    x = 443,067.13

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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.