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Finding the Fourth Proportional to 463,975.50, 640,275.30 and 273,001.26

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Solution

The fourth proportional to 463,975.50, 640,275.30 and 273,001.26 is: 376,735.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,975.50 : 640,275.30 = 273,001.26 : x
  2. Step 2: Convert to fraction form
    463,975.50/640,275.30 = 273,001.26/x
  3. Step 3: Cross multiply
    463,975.50x = 640,275.30 × 273,001.26
  4. Step 4: Simplify right side
    463,975.50x = 174,795,963,646.88
  5. Step 5: Solve for x
    x = 174,795,963,646.88/463,975.50
  6. Step 6: Final answer
    x = 376,735.33

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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.