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Finding the Fourth Proportional to 451,957.75, 623,699.94 and 248,012.08

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Solution

The fourth proportional to 451,957.75, 623,699.94 and 248,012.08 is: 342,255.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,957.75 : 623,699.94 = 248,012.08 : x
  2. Step 2: Convert to fraction form
    451,957.75/623,699.94 = 248,012.08/x
  3. Step 3: Cross multiply
    451,957.75x = 623,699.94 × 248,012.08
  4. Step 4: Simplify right side
    451,957.75x = 154,685,119,415.28
  5. Step 5: Solve for x
    x = 154,685,119,415.28/451,957.75
  6. Step 6: Final answer
    x = 342,255.71

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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.