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Finding the Fourth Proportional to 552,865.57, 763,189.89 and 371,682.58

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Solution

The fourth proportional to 552,865.57, 763,189.89 and 371,682.58 is: 513,080.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,865.57 : 763,189.89 = 371,682.58 : x
  2. Step 2: Convert to fraction form
    552,865.57/763,189.89 = 371,682.58/x
  3. Step 3: Cross multiply
    552,865.57x = 763,189.89 × 371,682.58
  4. Step 4: Simplify right side
    552,865.57x = 283,664,387,345.12
  5. Step 5: Solve for x
    x = 283,664,387,345.12/552,865.57
  6. Step 6: Final answer
    x = 513,080.22

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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.