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Finding the Fourth Proportional to 479,398.60, 719,069.81 and 179,854.17

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Solution

The fourth proportional to 479,398.60, 719,069.81 and 179,854.17 is: 269,770.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,398.60 : 719,069.81 = 179,854.17 : x
  2. Step 2: Convert to fraction form
    479,398.60/719,069.81 = 179,854.17/x
  3. Step 3: Cross multiply
    479,398.60x = 719,069.81 × 179,854.17
  4. Step 4: Simplify right side
    479,398.60x = 129,327,704,298.59
  5. Step 5: Solve for x
    x = 129,327,704,298.59/479,398.60
  6. Step 6: Final answer
    x = 269,770.72

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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.