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Finding the Fourth Proportional to 451,463.38, 623,016.02 and 247,511.86

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Solution

The fourth proportional to 451,463.38, 623,016.02 and 247,511.86 is: 341,564.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,463.38 : 623,016.02 = 247,511.86 : x
  2. Step 2: Convert to fraction form
    451,463.38/623,016.02 = 247,511.86/x
  3. Step 3: Cross multiply
    451,463.38x = 623,016.02 × 247,511.86
  4. Step 4: Simplify right side
    451,463.38x = 154,203,853,920.00
  5. Step 5: Solve for x
    x = 154,203,853,920.00/451,463.38
  6. Step 6: Final answer
    x = 341,564.48

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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.