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Finding the Fourth Proportional to 463,910.08, 640,185.06 and 272,935.76

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Solution

The fourth proportional to 463,910.08, 640,185.06 and 272,935.76 is: 376,644.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,910.08 : 640,185.06 = 272,935.76 : x
  2. Step 2: Convert to fraction form
    463,910.08/640,185.06 = 272,935.76/x
  3. Step 3: Cross multiply
    463,910.08x = 640,185.06 × 272,935.76
  4. Step 4: Simplify right side
    463,910.08x = 174,729,395,891.75
  5. Step 5: Solve for x
    x = 174,729,395,891.75/463,910.08
  6. Step 6: Final answer
    x = 376,644.97

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1.5x scale

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.