Home / 719,516.97-1,079,087.40-213,941.79

Finding the Fourth Proportional to 719,516.97, 1,079,087.40 and 213,941.79

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Solution

The fourth proportional to 719,516.97, 1,079,087.40 and 213,941.79 is: 320,856.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,516.97 : 1,079,087.40 = 213,941.79 : x
  2. Step 2: Convert to fraction form
    719,516.97/1,079,087.40 = 213,941.79/x
  3. Step 3: Cross multiply
    719,516.97x = 1,079,087.40 × 213,941.79
  4. Step 4: Simplify right side
    719,516.97x = 230,861,889,922.45
  5. Step 5: Solve for x
    x = 230,861,889,922.45/719,516.97
  6. Step 6: Final answer
    x = 320,856.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.