Home / 834,905.40-1,253,049.30-386,316.60

Finding the Fourth Proportional to 834,905.40, 1,253,049.30 and 386,316.60

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Solution

The fourth proportional to 834,905.40, 1,253,049.30 and 386,316.60 is: 579,794.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,905.40 : 1,253,049.30 = 386,316.60 : x
  2. Step 2: Convert to fraction form
    834,905.40/1,253,049.30 = 386,316.60/x
  3. Step 3: Cross multiply
    834,905.40x = 1,253,049.30 × 386,316.60
  4. Step 4: Simplify right side
    834,905.40x = 484,073,745,208.38
  5. Step 5: Solve for x
    x = 484,073,745,208.38/834,905.40
  6. Step 6: Final answer
    x = 579,794.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.