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Finding the Fourth Proportional to 379,080,618.30, 568,620,927.45 and 379,080,618.30

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Solution

The fourth proportional to 379,080,618.30, 568,620,927.45 and 379,080,618.30 is: 568,620,927.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,080,618.30 : 568,620,927.45 = 379,080,618.30 : x
  2. Step 2: Convert to fraction form
    379,080,618.30/568,620,927.45 = 379,080,618.30/x
  3. Step 3: Cross multiply
    379,080,618.30x = 568,620,927.45 × 379,080,618.30
  4. Step 4: Simplify right side
    379,080,618.30x = 215,553,172,756,065,472
  5. Step 5: Solve for x
    x = 215,553,172,756,065,472/379,080,618.30
  6. Step 6: Final answer
    x = 568,620,927.45

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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.