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Finding the Fourth Proportional to 479,179.44, 718,868.32 and 194,870

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Solution

The fourth proportional to 479,179.44, 718,868.32 and 194,870 is: 292,345.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,179.44 : 718,868.32 = 194,870 : x
  2. Step 2: Convert to fraction form
    479,179.44/718,868.32 = 194,870/x
  3. Step 3: Cross multiply
    479,179.44x = 718,868.32 × 194,870
  4. Step 4: Simplify right side
    479,179.44x = 140,085,869,518.40
  5. Step 5: Solve for x
    x = 140,085,869,518.40/479,179.44
  6. Step 6: Final answer
    x = 292,345.33

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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.