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Finding the Fourth Proportional to 384,219.80, 576,329.70 and 364,536.80

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Solution

The fourth proportional to 384,219.80, 576,329.70 and 364,536.80 is: 546,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,219.80 : 576,329.70 = 364,536.80 : x
  2. Step 2: Convert to fraction form
    384,219.80/576,329.70 = 364,536.80/x
  3. Step 3: Cross multiply
    384,219.80x = 576,329.70 × 364,536.80
  4. Step 4: Simplify right side
    384,219.80x = 210,093,384,582.96
  5. Step 5: Solve for x
    x = 210,093,384,582.96/384,219.80
  6. Step 6: Final answer
    x = 546,805.20

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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.