Home / 821,780.59-1,134,035.45-459,207.43

Finding the Fourth Proportional to 821,780.59, 1,134,035.45 and 459,207.43

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Solution

The fourth proportional to 821,780.59, 1,134,035.45 and 459,207.43 is: 633,694.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,780.59 : 1,134,035.45 = 459,207.43 : x
  2. Step 2: Convert to fraction form
    821,780.59/1,134,035.45 = 459,207.43/x
  3. Step 3: Cross multiply
    821,780.59x = 1,134,035.45 × 459,207.43
  4. Step 4: Simplify right side
    821,780.59x = 520,757,499,392.27
  5. Step 5: Solve for x
    x = 520,757,499,392.27/821,780.59
  6. Step 6: Final answer
    x = 633,694.09

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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.