Home / 881,689.05-1,216,717.40-494,504.39

Finding the Fourth Proportional to 881,689.05, 1,216,717.40 and 494,504.39

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Solution

The fourth proportional to 881,689.05, 1,216,717.40 and 494,504.39 is: 682,408.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,689.05 : 1,216,717.40 = 494,504.39 : x
  2. Step 2: Convert to fraction form
    881,689.05/1,216,717.40 = 494,504.39/x
  3. Step 3: Cross multiply
    881,689.05x = 1,216,717.40 × 494,504.39
  4. Step 4: Simplify right side
    881,689.05x = 601,672,099,967.44
  5. Step 5: Solve for x
    x = 601,672,099,967.44/881,689.05
  6. Step 6: Final answer
    x = 682,408.50

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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.