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Finding the Fourth Proportional to 447,361.38, 671,046.12 and 127,513.04

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Solution

The fourth proportional to 447,361.38, 671,046.12 and 127,513.04 is: 191,270.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,361.38 : 671,046.12 = 127,513.04 : x
  2. Step 2: Convert to fraction form
    447,361.38/671,046.12 = 127,513.04/x
  3. Step 3: Cross multiply
    447,361.38x = 671,046.12 × 127,513.04
  4. Step 4: Simplify right side
    447,361.38x = 85,567,127,386.17
  5. Step 5: Solve for x
    x = 85,567,127,386.17/447,361.38
  6. Step 6: Final answer
    x = 191,270.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.