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Finding the Fourth Proportional to 694,477.80, 958,374.18 and 392,682.60

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Solution

The fourth proportional to 694,477.80, 958,374.18 and 392,682.60 is: 541,899.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,477.80 : 958,374.18 = 392,682.60 : x
  2. Step 2: Convert to fraction form
    694,477.80/958,374.18 = 392,682.60/x
  3. Step 3: Cross multiply
    694,477.80x = 958,374.18 × 392,682.60
  4. Step 4: Simplify right side
    694,477.80x = 376,336,864,775.27
  5. Step 5: Solve for x
    x = 376,336,864,775.27/694,477.80
  6. Step 6: Final answer
    x = 541,899.06

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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.