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Finding the Fourth Proportional to 451,620.46, 623,237.11 and 247,672.81

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Solution

The fourth proportional to 451,620.46, 623,237.11 and 247,672.81 is: 341,788.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,620.46 : 623,237.11 = 247,672.81 : x
  2. Step 2: Convert to fraction form
    451,620.46/623,237.11 = 247,672.81/x
  3. Step 3: Cross multiply
    451,620.46x = 623,237.11 × 247,672.81
  4. Step 4: Simplify right side
    451,620.46x = 154,358,888,939.28
  5. Step 5: Solve for x
    x = 154,358,888,939.28/451,620.46
  6. Step 6: Final answer
    x = 341,788.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.