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Finding the Fourth Proportional to 463,796.01, 640,164.47 and 272,870.91

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Solution

The fourth proportional to 463,796.01, 640,164.47 and 272,870.91 is: 376,635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,796.01 : 640,164.47 = 272,870.91 : x
  2. Step 2: Convert to fraction form
    463,796.01/640,164.47 = 272,870.91/x
  3. Step 3: Cross multiply
    463,796.01x = 640,164.47 × 272,870.91
  4. Step 4: Simplify right side
    463,796.01x = 174,682,260,114.21
  5. Step 5: Solve for x
    x = 174,682,260,114.21/463,796.01
  6. Step 6: Final answer
    x = 376,635.97

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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.