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Finding the Fourth Proportional to 408,853.90, 613,283.15 and 364,082.75

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Solution

The fourth proportional to 408,853.90, 613,283.15 and 364,082.75 is: 546,126.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,853.90 : 613,283.15 = 364,082.75 : x
  2. Step 2: Convert to fraction form
    408,853.90/613,283.15 = 364,082.75/x
  3. Step 3: Cross multiply
    408,853.90x = 613,283.15 × 364,082.75
  4. Step 4: Simplify right side
    408,853.90x = 223,285,815,780.66
  5. Step 5: Solve for x
    x = 223,285,815,780.66/408,853.90
  6. Step 6: Final answer
    x = 546,126.17

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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.