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Finding the Fourth Proportional to 703,610.43, 971,086.61 and 445,511.37

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Solution

The fourth proportional to 703,610.43, 971,086.61 and 445,511.37 is: 614,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,610.43 : 971,086.61 = 445,511.37 : x
  2. Step 2: Convert to fraction form
    703,610.43/971,086.61 = 445,511.37/x
  3. Step 3: Cross multiply
    703,610.43x = 971,086.61 × 445,511.37
  4. Step 4: Simplify right side
    703,610.43x = 432,630,123,782.20
  5. Step 5: Solve for x
    x = 432,630,123,782.20/703,610.43
  6. Step 6: Final answer
    x = 614,871.68

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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.