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Finding the Fourth Proportional to 463,577.75, 639,664.22 and 270,017.32

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Solution

The fourth proportional to 463,577.75, 639,664.22 and 270,017.32 is: 372,581.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,577.75 : 639,664.22 = 270,017.32 : x
  2. Step 2: Convert to fraction form
    463,577.75/639,664.22 = 270,017.32/x
  3. Step 3: Cross multiply
    463,577.75x = 639,664.22 × 270,017.32
  4. Step 4: Simplify right side
    463,577.75x = 172,720,418,384.29
  5. Step 5: Solve for x
    x = 172,720,418,384.29/463,577.75
  6. Step 6: Final answer
    x = 372,581.34

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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.