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Finding the Fourth Proportional to 636,998.52, 955,636.02 and 193,755

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Solution

The fourth proportional to 636,998.52, 955,636.02 and 193,755 is: 290,674.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,998.52 : 955,636.02 = 193,755 : x
  2. Step 2: Convert to fraction form
    636,998.52/955,636.02 = 193,755/x
  3. Step 3: Cross multiply
    636,998.52x = 955,636.02 × 193,755
  4. Step 4: Simplify right side
    636,998.52x = 185,159,257,055.10
  5. Step 5: Solve for x
    x = 185,159,257,055.10/636,998.52
  6. Step 6: Final answer
    x = 290,674.55

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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.