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Finding the Fourth Proportional to 559,876,821.20, 839,815,231.80 and 534,367,653.20

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Solution

The fourth proportional to 559,876,821.20, 839,815,231.80 and 534,367,653.20 is: 801,551,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,876,821.20 : 839,815,231.80 = 534,367,653.20 : x
  2. Step 2: Convert to fraction form
    559,876,821.20/839,815,231.80 = 534,367,653.20/x
  3. Step 3: Cross multiply
    559,876,821.20x = 839,815,231.80 × 534,367,653.20
  4. Step 4: Simplify right side
    559,876,821.20x = 448,770,094,538,579,968
  5. Step 5: Solve for x
    x = 448,770,094,538,579,968/559,876,821.20
  6. Step 6: Final answer
    x = 801,551,479.80

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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.