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Finding the Fourth Proportional to 718,730.52, 1,078,843.12 and 529,404.44

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Solution

The fourth proportional to 718,730.52, 1,078,843.12 and 529,404.44 is: 794,657.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,730.52 : 1,078,843.12 = 529,404.44 : x
  2. Step 2: Convert to fraction form
    718,730.52/1,078,843.12 = 529,404.44/x
  3. Step 3: Cross multiply
    718,730.52x = 1,078,843.12 × 529,404.44
  4. Step 4: Simplify right side
    718,730.52x = 571,144,337,791.45
  5. Step 5: Solve for x
    x = 571,144,337,791.45/718,730.52
  6. Step 6: Final answer
    x = 794,657.14

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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.