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Finding the Fourth Proportional to 463,575.75, 639,661.47 and 270,015.32

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Solution

The fourth proportional to 463,575.75, 639,661.47 and 270,015.32 is: 372,578.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,575.75 : 639,661.47 = 270,015.32 : x
  2. Step 2: Convert to fraction form
    463,575.75/639,661.47 = 270,015.32/x
  3. Step 3: Cross multiply
    463,575.75x = 639,661.47 × 270,015.32
  4. Step 4: Simplify right side
    463,575.75x = 172,718,396,513.72
  5. Step 5: Solve for x
    x = 172,718,396,513.72/463,575.75
  6. Step 6: Final answer
    x = 372,578.58

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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.