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Finding the Fourth Proportional to 384,429.90, 576,644.85 and 366,933.90

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Solution

The fourth proportional to 384,429.90, 576,644.85 and 366,933.90 is: 550,400.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,429.90 : 576,644.85 = 366,933.90 : x
  2. Step 2: Convert to fraction form
    384,429.90/576,644.85 = 366,933.90/x
  3. Step 3: Cross multiply
    384,429.90x = 576,644.85 × 366,933.90
  4. Step 4: Simplify right side
    384,429.90x = 211,590,543,725.42
  5. Step 5: Solve for x
    x = 211,590,543,725.42/384,429.90
  6. Step 6: Final answer
    x = 550,400.85

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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.