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Finding the Fourth Proportional to 469,178.10, 703,659.18 and 279,691.95

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Solution

The fourth proportional to 469,178.10, 703,659.18 and 279,691.95 is: 419,473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,178.10 : 703,659.18 = 279,691.95 : x
  2. Step 2: Convert to fraction form
    469,178.10/703,659.18 = 279,691.95/x
  3. Step 3: Cross multiply
    469,178.10x = 703,659.18 × 279,691.95
  4. Step 4: Simplify right side
    469,178.10x = 196,807,808,189.60
  5. Step 5: Solve for x
    x = 196,807,808,189.60/469,178.10
  6. Step 6: Final answer
    x = 419,473.56

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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.