Home / 821,881.73-1,134,200.97-459,311.65

Finding the Fourth Proportional to 821,881.73, 1,134,200.97 and 459,311.65

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Solution

The fourth proportional to 821,881.73, 1,134,200.97 and 459,311.65 is: 633,852.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,881.73 : 1,134,200.97 = 459,311.65 : x
  2. Step 2: Convert to fraction form
    821,881.73/1,134,200.97 = 459,311.65/x
  3. Step 3: Cross multiply
    821,881.73x = 1,134,200.97 × 459,311.65
  4. Step 4: Simplify right side
    821,881.73x = 520,951,716,126.80
  5. Step 5: Solve for x
    x = 520,951,716,126.80/821,881.73
  6. Step 6: Final answer
    x = 633,852.41

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Double scale
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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.