Home / 825,584.28-1,139,630.76-553,553.07

Finding the Fourth Proportional to 825,584.28, 1,139,630.76 and 553,553.07

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Solution

The fourth proportional to 825,584.28, 1,139,630.76 and 553,553.07 is: 764,120.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,584.28 : 1,139,630.76 = 553,553.07 : x
  2. Step 2: Convert to fraction form
    825,584.28/1,139,630.76 = 553,553.07/x
  3. Step 3: Cross multiply
    825,584.28x = 1,139,630.76 × 553,553.07
  4. Step 4: Simplify right side
    825,584.28x = 630,846,105,864.43
  5. Step 5: Solve for x
    x = 630,846,105,864.43/825,584.28
  6. Step 6: Final answer
    x = 764,120.78

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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.