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Finding the Fourth Proportional to 694,846, 958,913.40 and 393,033.52

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Solution

The fourth proportional to 694,846, 958,913.40 and 393,033.52 is: 542,400.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,846 : 958,913.40 = 393,033.52 : x
  2. Step 2: Convert to fraction form
    694,846/958,913.40 = 393,033.52/x
  3. Step 3: Cross multiply
    694,846x = 958,913.40 × 393,033.52
  4. Step 4: Simplify right side
    694,846x = 376,885,108,977.17
  5. Step 5: Solve for x
    x = 376,885,108,977.17/694,846
  6. Step 6: Final answer
    x = 542,400.92

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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.