Home / 693,685.52-1,040,627.20-213,953.60

Finding the Fourth Proportional to 693,685.52, 1,040,627.20 and 213,953.60

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Solution

The fourth proportional to 693,685.52, 1,040,627.20 and 213,953.60 is: 320,960.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,685.52 : 1,040,627.20 = 213,953.60 : x
  2. Step 2: Convert to fraction form
    693,685.52/1,040,627.20 = 213,953.60/x
  3. Step 3: Cross multiply
    693,685.52x = 1,040,627.20 × 213,953.60
  4. Step 4: Simplify right side
    693,685.52x = 222,645,935,697.92
  5. Step 5: Solve for x
    x = 222,645,935,697.92/693,685.52
  6. Step 6: Final answer
    x = 320,960.91

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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.