Home / 494,191.80-681,996.51-279,332.55

Finding the Fourth Proportional to 494,191.80, 681,996.51 and 279,332.55

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Solution

The fourth proportional to 494,191.80, 681,996.51 and 279,332.55 is: 385,485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,191.80 : 681,996.51 = 279,332.55 : x
  2. Step 2: Convert to fraction form
    494,191.80/681,996.51 = 279,332.55/x
  3. Step 3: Cross multiply
    494,191.80x = 681,996.51 × 279,332.55
  4. Step 4: Simplify right side
    494,191.80x = 190,503,824,229.40
  5. Step 5: Solve for x
    x = 190,503,824,229.40/494,191.80
  6. Step 6: Final answer
    x = 385,485.60

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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.