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Finding the Fourth Proportional to 384,916,532.80, 576,702,952.80 and 331,168,820.80

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Solution

The fourth proportional to 384,916,532.80, 576,702,952.80 and 331,168,820.80 is: 496,175,197.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,916,532.80 : 576,702,952.80 = 331,168,820.80 : x
  2. Step 2: Convert to fraction form
    384,916,532.80/576,702,952.80 = 331,168,820.80/x
  3. Step 3: Cross multiply
    384,916,532.80x = 576,702,952.80 × 331,168,820.80
  4. Step 4: Simplify right side
    384,916,532.80x = 190,986,036,830,654,048
  5. Step 5: Solve for x
    x = 190,986,036,830,654,048/384,916,532.80
  6. Step 6: Final answer
    x = 496,175,197.88

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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.