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Finding the Fourth Proportional to 978,755.73, 1,467,658.95 and 574,080.17

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Solution

The fourth proportional to 978,755.73, 1,467,658.95 and 574,080.17 is: 860,841.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,755.73 : 1,467,658.95 = 574,080.17 : x
  2. Step 2: Convert to fraction form
    978,755.73/1,467,658.95 = 574,080.17/x
  3. Step 3: Cross multiply
    978,755.73x = 1,467,658.95 × 574,080.17
  4. Step 4: Simplify right side
    978,755.73x = 842,553,890,026.93
  5. Step 5: Solve for x
    x = 842,553,890,026.93/978,755.73
  6. Step 6: Final answer
    x = 860,841.85

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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.