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Finding the Fourth Proportional to 538,511.56, 807,378.54 and 164,330.44

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Solution

The fourth proportional to 538,511.56, 807,378.54 and 164,330.44 is: 246,377.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,511.56 : 807,378.54 = 164,330.44 : x
  2. Step 2: Convert to fraction form
    538,511.56/807,378.54 = 164,330.44/x
  3. Step 3: Cross multiply
    538,511.56x = 807,378.54 × 164,330.44
  4. Step 4: Simplify right side
    538,511.56x = 132,676,870,724.76
  5. Step 5: Solve for x
    x = 132,676,870,724.76/538,511.56
  6. Step 6: Final answer
    x = 246,377.02

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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.