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Finding the Fourth Proportional to 636,999.52, 955,637.52 and 193,756

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Solution

The fourth proportional to 636,999.52, 955,637.52 and 193,756 is: 290,676.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,999.52 : 955,637.52 = 193,756 : x
  2. Step 2: Convert to fraction form
    636,999.52/955,637.52 = 193,756/x
  3. Step 3: Cross multiply
    636,999.52x = 955,637.52 × 193,756
  4. Step 4: Simplify right side
    636,999.52x = 185,160,503,325.12
  5. Step 5: Solve for x
    x = 185,160,503,325.12/636,999.52
  6. Step 6: Final answer
    x = 290,676.05

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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.