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Finding the Fourth Proportional to 703,732.73, 971,254.89 and 445,633.25

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Solution

The fourth proportional to 703,732.73, 971,254.89 and 445,633.25 is: 615,039.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,732.73 : 971,254.89 = 445,633.25 : x
  2. Step 2: Convert to fraction form
    703,732.73/971,254.89 = 445,633.25/x
  3. Step 3: Cross multiply
    703,732.73x = 971,254.89 × 445,633.25
  4. Step 4: Simplify right side
    703,732.73x = 432,823,468,352.82
  5. Step 5: Solve for x
    x = 432,823,468,352.82/703,732.73
  6. Step 6: Final answer
    x = 615,039.56

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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.