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Finding the Fourth Proportional to 451,953.36, 623,693.90 and 248,007.69

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Solution

The fourth proportional to 451,953.36, 623,693.90 and 248,007.69 is: 342,249.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,953.36 : 623,693.90 = 248,007.69 : x
  2. Step 2: Convert to fraction form
    451,953.36/623,693.90 = 248,007.69/x
  3. Step 3: Cross multiply
    451,953.36x = 623,693.90 × 248,007.69
  4. Step 4: Simplify right side
    451,953.36x = 154,680,883,406.09
  5. Step 5: Solve for x
    x = 154,680,883,406.09/451,953.36
  6. Step 6: Final answer
    x = 342,249.66

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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.