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Finding the Fourth Proportional to 424,081.73, 636,227.16 and 210,950.73

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Solution

The fourth proportional to 424,081.73, 636,227.16 and 210,950.73 is: 316,478.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,081.73 : 636,227.16 = 210,950.73 : x
  2. Step 2: Convert to fraction form
    424,081.73/636,227.16 = 210,950.73/x
  3. Step 3: Cross multiply
    424,081.73x = 636,227.16 × 210,950.73
  4. Step 4: Simplify right side
    424,081.73x = 134,212,583,056.76
  5. Step 5: Solve for x
    x = 134,212,583,056.76/424,081.73
  6. Step 6: Final answer
    x = 316,478.11

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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.