Home / 831,308.56-1,147,205.13-449,335.34

Finding the Fourth Proportional to 831,308.56, 1,147,205.13 and 449,335.34

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Solution

The fourth proportional to 831,308.56, 1,147,205.13 and 449,335.34 is: 620,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,308.56 : 1,147,205.13 = 449,335.34 : x
  2. Step 2: Convert to fraction form
    831,308.56/1,147,205.13 = 449,335.34/x
  3. Step 3: Cross multiply
    831,308.56x = 1,147,205.13 × 449,335.34
  4. Step 4: Simplify right side
    831,308.56x = 515,479,804,891.62
  5. Step 5: Solve for x
    x = 515,479,804,891.62/831,308.56
  6. Step 6: Final answer
    x = 620,082.40

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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.