Home / 821,793.74-1,134,054.27-459,220.59

Finding the Fourth Proportional to 821,793.74, 1,134,054.27 and 459,220.59

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Solution

The fourth proportional to 821,793.74, 1,134,054.27 and 459,220.59 is: 633,712.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,793.74 : 1,134,054.27 = 459,220.59 : x
  2. Step 2: Convert to fraction form
    821,793.74/1,134,054.27 = 459,220.59/x
  3. Step 3: Cross multiply
    821,793.74x = 1,134,054.27 × 459,220.59
  4. Step 4: Simplify right side
    821,793.74x = 520,781,070,961.42
  5. Step 5: Solve for x
    x = 520,781,070,961.42/821,793.74
  6. Step 6: Final answer
    x = 633,712.63

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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.