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Finding the Fourth Proportional to 408,032.70, 611,451.45 and 365,912.70

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Solution

The fourth proportional to 408,032.70, 611,451.45 and 365,912.70 is: 548,333.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,032.70 : 611,451.45 = 365,912.70 : x
  2. Step 2: Convert to fraction form
    408,032.70/611,451.45 = 365,912.70/x
  3. Step 3: Cross multiply
    408,032.70x = 611,451.45 × 365,912.70
  4. Step 4: Simplify right side
    408,032.70x = 223,737,850,988.42
  5. Step 5: Solve for x
    x = 223,737,850,988.42/408,032.70
  6. Step 6: Final answer
    x = 548,333.14

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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.