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Finding the Fourth Proportional to 367,842.60, 551,034.90 and 324,005.40

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Solution

The fourth proportional to 367,842.60, 551,034.90 and 324,005.40 is: 485,365.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,842.60 : 551,034.90 = 324,005.40 : x
  2. Step 2: Convert to fraction form
    367,842.60/551,034.90 = 324,005.40/x
  3. Step 3: Cross multiply
    367,842.60x = 551,034.90 × 324,005.40
  4. Step 4: Simplify right side
    367,842.60x = 178,538,283,188.46
  5. Step 5: Solve for x
    x = 178,538,283,188.46/367,842.60
  6. Step 6: Final answer
    x = 485,365.98

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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.