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Finding the Fourth Proportional to 717,398.37, 989,936.48 and 441,712.44

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Solution

The fourth proportional to 717,398.37, 989,936.48 and 441,712.44 is: 609,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,398.37 : 989,936.48 = 441,712.44 : x
  2. Step 2: Convert to fraction form
    717,398.37/989,936.48 = 441,712.44/x
  3. Step 3: Cross multiply
    717,398.37x = 989,936.48 × 441,712.44
  4. Step 4: Simplify right side
    717,398.37x = 437,267,253,076.13
  5. Step 5: Solve for x
    x = 437,267,253,076.13/717,398.37
  6. Step 6: Final answer
    x = 609,518.05

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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.