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Finding the Fourth Proportional to 493,365.15, 740,273.73 and 268,388.46

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Solution

The fourth proportional to 493,365.15, 740,273.73 and 268,388.46 is: 402,705.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,365.15 : 740,273.73 = 268,388.46 : x
  2. Step 2: Convert to fraction form
    493,365.15/740,273.73 = 268,388.46/x
  3. Step 3: Cross multiply
    493,365.15x = 740,273.73 × 268,388.46
  4. Step 4: Simplify right side
    493,365.15x = 198,680,926,373.16
  5. Step 5: Solve for x
    x = 198,680,926,373.16/493,365.15
  6. Step 6: Final answer
    x = 402,705.64

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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.