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Finding the Fourth Proportional to 590,781.33, 886,357.89 and 211,443.45

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Solution

The fourth proportional to 590,781.33, 886,357.89 and 211,443.45 is: 317,231.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,781.33 : 886,357.89 = 211,443.45 : x
  2. Step 2: Convert to fraction form
    590,781.33/886,357.89 = 211,443.45/x
  3. Step 3: Cross multiply
    590,781.33x = 886,357.89 × 211,443.45
  4. Step 4: Simplify right side
    590,781.33x = 187,414,570,196.32
  5. Step 5: Solve for x
    x = 187,414,570,196.32/590,781.33
  6. Step 6: Final answer
    x = 317,231.71

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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.