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Finding the Fourth Proportional to 979,032.88, 1,468,990 and 529,227.12

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Solution

The fourth proportional to 979,032.88, 1,468,990 and 529,227.12 is: 794,078.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,032.88 : 1,468,990 = 529,227.12 : x
  2. Step 2: Convert to fraction form
    979,032.88/1,468,990 = 529,227.12/x
  3. Step 3: Cross multiply
    979,032.88x = 1,468,990 × 529,227.12
  4. Step 4: Simplify right side
    979,032.88x = 777,429,347,008.80
  5. Step 5: Solve for x
    x = 777,429,347,008.80/979,032.88
  6. Step 6: Final answer
    x = 794,078.89

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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.