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Finding the Fourth Proportional to 469,165.71, 703,640.63 and 279,679.58

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Solution

The fourth proportional to 469,165.71, 703,640.63 and 279,679.58 is: 419,455.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,165.71 : 703,640.63 = 279,679.58 : x
  2. Step 2: Convert to fraction form
    469,165.71/703,640.63 = 279,679.58/x
  3. Step 3: Cross multiply
    469,165.71x = 703,640.63 × 279,679.58
  4. Step 4: Simplify right side
    469,165.71x = 196,793,913,050.33
  5. Step 5: Solve for x
    x = 196,793,913,050.33/469,165.71
  6. Step 6: Final answer
    x = 419,455.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.