Home / 393,965.43-543,674.53-224,199.55

Finding the Fourth Proportional to 393,965.43, 543,674.53 and 224,199.55

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Solution

The fourth proportional to 393,965.43, 543,674.53 and 224,199.55 is: 309,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,965.43 : 543,674.53 = 224,199.55 : x
  2. Step 2: Convert to fraction form
    393,965.43/543,674.53 = 224,199.55/x
  3. Step 3: Cross multiply
    393,965.43x = 543,674.53 × 224,199.55
  4. Step 4: Simplify right side
    393,965.43x = 121,891,584,972.46
  5. Step 5: Solve for x
    x = 121,891,584,972.46/393,965.43
  6. Step 6: Final answer
    x = 309,396.65

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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.