Home / 821,684.28-1,133,882.86-459,036.12

Finding the Fourth Proportional to 821,684.28, 1,133,882.86 and 459,036.12

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Solution

The fourth proportional to 821,684.28, 1,133,882.86 and 459,036.12 is: 633,446.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,684.28 : 1,133,882.86 = 459,036.12 : x
  2. Step 2: Convert to fraction form
    821,684.28/1,133,882.86 = 459,036.12/x
  3. Step 3: Cross multiply
    821,684.28x = 1,133,882.86 × 459,036.12
  4. Step 4: Simplify right side
    821,684.28x = 520,493,188,588.90
  5. Step 5: Solve for x
    x = 520,493,188,588.90/821,684.28
  6. Step 6: Final answer
    x = 633,446.69

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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.