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Finding the Fourth Proportional to 367,612.60, 550,689.90 and 323,775.40

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Solution

The fourth proportional to 367,612.60, 550,689.90 and 323,775.40 is: 485,021.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,612.60 : 550,689.90 = 323,775.40 : x
  2. Step 2: Convert to fraction form
    367,612.60/550,689.90 = 323,775.40/x
  3. Step 3: Cross multiply
    367,612.60x = 550,689.90 × 323,775.40
  4. Step 4: Simplify right side
    367,612.60x = 178,299,842,648.46
  5. Step 5: Solve for x
    x = 178,299,842,648.46/367,612.60
  6. Step 6: Final answer
    x = 485,021.03

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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.