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Finding the Fourth Proportional to 293,781.38, 440,672.10 and 193,918.25

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Solution

The fourth proportional to 293,781.38, 440,672.10 and 193,918.25 is: 290,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,781.38 : 440,672.10 = 193,918.25 : x
  2. Step 2: Convert to fraction form
    293,781.38/440,672.10 = 193,918.25/x
  3. Step 3: Cross multiply
    293,781.38x = 440,672.10 × 193,918.25
  4. Step 4: Simplify right side
    293,781.38x = 85,454,362,830.31
  5. Step 5: Solve for x
    x = 85,454,362,830.31/293,781.38
  6. Step 6: Final answer
    x = 290,877.40

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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.