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Finding the Fourth Proportional to 589,797,451.25, 813,940,031.97 and 321,887,953.54

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Solution

The fourth proportional to 589,797,451.25, 813,940,031.97 and 321,887,953.54 is: 444,216,045.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,797,451.25 : 813,940,031.97 = 321,887,953.54 : x
  2. Step 2: Convert to fraction form
    589,797,451.25/813,940,031.97 = 321,887,953.54/x
  3. Step 3: Cross multiply
    589,797,451.25x = 813,940,031.97 × 321,887,953.54
  4. Step 4: Simplify right side
    589,797,451.25x = 261,997,491,191,540,416
  5. Step 5: Solve for x
    x = 261,997,491,191,540,416/589,797,451.25
  6. Step 6: Final answer
    x = 444,216,045.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.