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Finding the Fourth Proportional to 451,967.42, 623,713.32 and 248,021.75

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Solution

The fourth proportional to 451,967.42, 623,713.32 and 248,021.75 is: 342,269.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,967.42 : 623,713.32 = 248,021.75 : x
  2. Step 2: Convert to fraction form
    451,967.42/623,713.32 = 248,021.75/x
  3. Step 3: Cross multiply
    451,967.42x = 623,713.32 × 248,021.75
  4. Step 4: Simplify right side
    451,967.42x = 154,694,466,006.14
  5. Step 5: Solve for x
    x = 154,694,466,006.14/451,967.42
  6. Step 6: Final answer
    x = 342,269.07

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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.