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Finding the Fourth Proportional to 636,681.06, 954,917.78 and 187,296.86

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Solution

The fourth proportional to 636,681.06, 954,917.78 and 187,296.86 is: 280,914.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,681.06 : 954,917.78 = 187,296.86 : x
  2. Step 2: Convert to fraction form
    636,681.06/954,917.78 = 187,296.86/x
  3. Step 3: Cross multiply
    636,681.06x = 954,917.78 × 187,296.86
  4. Step 4: Simplify right side
    636,681.06x = 178,853,103,202.98
  5. Step 5: Solve for x
    x = 178,853,103,202.98/636,681.06
  6. Step 6: Final answer
    x = 280,914.75

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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.