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Finding the Fourth Proportional to 370,857.90, 556,286.85 and 366,921.30

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Solution

The fourth proportional to 370,857.90, 556,286.85 and 366,921.30 is: 550,381.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,857.90 : 556,286.85 = 366,921.30 : x
  2. Step 2: Convert to fraction form
    370,857.90/556,286.85 = 366,921.30/x
  3. Step 3: Cross multiply
    370,857.90x = 556,286.85 × 366,921.30
  4. Step 4: Simplify right side
    370,857.90x = 204,113,494,174.91
  5. Step 5: Solve for x
    x = 204,113,494,174.91/370,857.90
  6. Step 6: Final answer
    x = 550,381.95

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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.