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Finding the Fourth Proportional to 451,893.84, 623,592.44 and 247,940.16

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Solution

The fourth proportional to 451,893.84, 623,592.44 and 247,940.16 is: 342,145.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,893.84 : 623,592.44 = 247,940.16 : x
  2. Step 2: Convert to fraction form
    451,893.84/623,592.44 = 247,940.16/x
  3. Step 3: Cross multiply
    451,893.84x = 623,592.44 × 247,940.16
  4. Step 4: Simplify right side
    451,893.84x = 154,613,609,348.39
  5. Step 5: Solve for x
    x = 154,613,609,348.39/451,893.84
  6. Step 6: Final answer
    x = 342,145.87

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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.