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Finding the Fourth Proportional to 493,365.14, 740,273.72 and 268,388.45

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Solution

The fourth proportional to 493,365.14, 740,273.72 and 268,388.45 is: 402,705.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,365.14 : 740,273.72 = 268,388.45 : x
  2. Step 2: Convert to fraction form
    493,365.14/740,273.72 = 268,388.45/x
  3. Step 3: Cross multiply
    493,365.14x = 740,273.72 × 268,388.45
  4. Step 4: Simplify right side
    493,365.14x = 198,680,916,286.53
  5. Step 5: Solve for x
    x = 198,680,916,286.53/493,365.14
  6. Step 6: Final answer
    x = 402,705.62

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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.