Home / 694,985.38-959,073.34-393,179.38

Finding the Fourth Proportional to 694,985.38, 959,073.34 and 393,179.38

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Solution

The fourth proportional to 694,985.38, 959,073.34 and 393,179.38 is: 542,583.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,985.38 : 959,073.34 = 393,179.38 : x
  2. Step 2: Convert to fraction form
    694,985.38/959,073.34 = 393,179.38/x
  3. Step 3: Cross multiply
    694,985.38x = 959,073.34 × 393,179.38
  4. Step 4: Simplify right side
    694,985.38x = 377,087,854,434.47
  5. Step 5: Solve for x
    x = 377,087,854,434.47/694,985.38
  6. Step 6: Final answer
    x = 542,583.87

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Double scale
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1.5x scale

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.