Home / 694,981.75-959,068.33-393,175.75

Finding the Fourth Proportional to 694,981.75, 959,068.33 and 393,175.75

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Solution

The fourth proportional to 694,981.75, 959,068.33 and 393,175.75 is: 542,578.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,981.75 : 959,068.33 = 393,175.75 : x
  2. Step 2: Convert to fraction form
    694,981.75/959,068.33 = 393,175.75/x
  3. Step 3: Cross multiply
    694,981.75x = 959,068.33 × 393,175.75
  4. Step 4: Simplify right side
    694,981.75x = 377,082,409,949.00
  5. Step 5: Solve for x
    x = 377,082,409,949.00/694,981.75
  6. Step 6: Final answer
    x = 542,578.87

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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.