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Finding the Fourth Proportional to 451,963.77, 623,688.87 and 248,009.55

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Solution

The fourth proportional to 451,963.77, 623,688.87 and 248,009.55 is: 342,241.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,963.77 : 623,688.87 = 248,009.55 : x
  2. Step 2: Convert to fraction form
    451,963.77/623,688.87 = 248,009.55/x
  3. Step 3: Cross multiply
    451,963.77x = 623,688.87 × 248,009.55
  4. Step 4: Simplify right side
    451,963.77x = 154,680,795,988.71
  5. Step 5: Solve for x
    x = 154,680,795,988.71/451,963.77
  6. Step 6: Final answer
    x = 342,241.58

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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.