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Finding the Fourth Proportional to 552,863.63, 763,187.21 and 371,680.64

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Solution

The fourth proportional to 552,863.63, 763,187.21 and 371,680.64 is: 513,077.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,863.63 : 763,187.21 = 371,680.64 : x
  2. Step 2: Convert to fraction form
    552,863.63/763,187.21 = 371,680.64/x
  3. Step 3: Cross multiply
    552,863.63x = 763,187.21 × 371,680.64
  4. Step 4: Simplify right side
    552,863.63x = 283,661,913,489.78
  5. Step 5: Solve for x
    x = 283,661,913,489.78/552,863.63
  6. Step 6: Final answer
    x = 513,077.55

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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.