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Finding the Fourth Proportional to 627,493.15, 865,945.92 and 341,013.16

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Solution

The fourth proportional to 627,493.15, 865,945.92 and 341,013.16 is: 470,601.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,493.15 : 865,945.92 = 341,013.16 : x
  2. Step 2: Convert to fraction form
    627,493.15/865,945.92 = 341,013.16/x
  3. Step 3: Cross multiply
    627,493.15x = 865,945.92 × 341,013.16
  4. Step 4: Simplify right side
    627,493.15x = 295,298,954,568.31
  5. Step 5: Solve for x
    x = 295,298,954,568.31/627,493.15
  6. Step 6: Final answer
    x = 470,601.08

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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.