Home / 854,600.39-1,179,217.51-491,954.18

Finding the Fourth Proportional to 854,600.39, 1,179,217.51 and 491,954.18

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Solution

The fourth proportional to 854,600.39, 1,179,217.51 and 491,954.18 is: 678,821.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,600.39 : 1,179,217.51 = 491,954.18 : x
  2. Step 2: Convert to fraction form
    854,600.39/1,179,217.51 = 491,954.18/x
  3. Step 3: Cross multiply
    854,600.39x = 1,179,217.51 × 491,954.18
  4. Step 4: Simplify right side
    854,600.39x = 580,120,976,047.72
  5. Step 5: Solve for x
    x = 580,120,976,047.72/854,600.39
  6. Step 6: Final answer
    x = 678,821.34

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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.