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Finding the Fourth Proportional to 329,771,218.80, 494,656,828.20 and 191,454,841.20

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Solution

The fourth proportional to 329,771,218.80, 494,656,828.20 and 191,454,841.20 is: 287,182,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,771,218.80 : 494,656,828.20 = 191,454,841.20 : x
  2. Step 2: Convert to fraction form
    329,771,218.80/494,656,828.20 = 191,454,841.20/x
  3. Step 3: Cross multiply
    329,771,218.80x = 494,656,828.20 × 191,454,841.20
  4. Step 4: Simplify right side
    329,771,218.80x = 94,704,444,491,526,672
  5. Step 5: Solve for x
    x = 94,704,444,491,526,672/329,771,218.80
  6. Step 6: Final answer
    x = 287,182,261.80

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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.