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Finding the Fourth Proportional to 636,833.21, 955,249.65 and 436,546.39

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Solution

The fourth proportional to 636,833.21, 955,249.65 and 436,546.39 is: 654,819.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,833.21 : 955,249.65 = 436,546.39 : x
  2. Step 2: Convert to fraction form
    636,833.21/955,249.65 = 436,546.39/x
  3. Step 3: Cross multiply
    636,833.21x = 955,249.65 × 436,546.39
  4. Step 4: Simplify right side
    636,833.21x = 417,010,782,665.64
  5. Step 5: Solve for x
    x = 417,010,782,665.64/636,833.21
  6. Step 6: Final answer
    x = 654,819.46

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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.