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Finding the Fourth Proportional to 665,818.56, 998,776.44 and 192,506.40

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Solution

The fourth proportional to 665,818.56, 998,776.44 and 192,506.40 is: 288,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,818.56 : 998,776.44 = 192,506.40 : x
  2. Step 2: Convert to fraction form
    665,818.56/998,776.44 = 192,506.40/x
  3. Step 3: Cross multiply
    665,818.56x = 998,776.44 × 192,506.40
  4. Step 4: Simplify right side
    665,818.56x = 192,270,856,869.22
  5. Step 5: Solve for x
    x = 192,270,856,869.22/665,818.56
  6. Step 6: Final answer
    x = 288,773.65

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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.