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Finding the Fourth Proportional to 591,272.80, 886,714.80 and 217,247.20

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Solution

The fourth proportional to 591,272.80, 886,714.80 and 217,247.20 is: 325,799.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,272.80 : 886,714.80 = 217,247.20 : x
  2. Step 2: Convert to fraction form
    591,272.80/886,714.80 = 217,247.20/x
  3. Step 3: Cross multiply
    591,272.80x = 886,714.80 × 217,247.20
  4. Step 4: Simplify right side
    591,272.80x = 192,636,307,498.56
  5. Step 5: Solve for x
    x = 192,636,307,498.56/591,272.80
  6. Step 6: Final answer
    x = 325,799.37

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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.