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Finding the Fourth Proportional to 606,631.60, 909,990.60 and 185,906.80

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Solution

The fourth proportional to 606,631.60, 909,990.60 and 185,906.80 is: 278,873.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,631.60 : 909,990.60 = 185,906.80 : x
  2. Step 2: Convert to fraction form
    606,631.60/909,990.60 = 185,906.80/x
  3. Step 3: Cross multiply
    606,631.60x = 909,990.60 × 185,906.80
  4. Step 4: Simplify right side
    606,631.60x = 169,173,440,476.08
  5. Step 5: Solve for x
    x = 169,173,440,476.08/606,631.60
  6. Step 6: Final answer
    x = 278,873.44

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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.