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Finding the Fourth Proportional to 773,147.10, 1,066,978.92 and 482,930.49

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Solution

The fourth proportional to 773,147.10, 1,066,978.92 and 482,930.49 is: 666,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,147.10 : 1,066,978.92 = 482,930.49 : x
  2. Step 2: Convert to fraction form
    773,147.10/1,066,978.92 = 482,930.49/x
  3. Step 3: Cross multiply
    773,147.10x = 1,066,978.92 × 482,930.49
  4. Step 4: Simplify right side
    773,147.10x = 515,276,652,655.27
  5. Step 5: Solve for x
    x = 515,276,652,655.27/773,147.10
  6. Step 6: Final answer
    x = 666,466.51

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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.