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Finding the Fourth Proportional to 636,718.67, 954,749.35 and 187,381.19

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Solution

The fourth proportional to 636,718.67, 954,749.35 and 187,381.19 is: 280,975.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,718.67 : 954,749.35 = 187,381.19 : x
  2. Step 2: Convert to fraction form
    636,718.67/954,749.35 = 187,381.19/x
  3. Step 3: Cross multiply
    636,718.67x = 954,749.35 × 187,381.19
  4. Step 4: Simplify right side
    636,718.67x = 178,902,069,354.73
  5. Step 5: Solve for x
    x = 178,902,069,354.73/636,718.67
  6. Step 6: Final answer
    x = 280,975.06

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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.