Home / 834,890.40-1,253,026.80-386,301.60

Finding the Fourth Proportional to 834,890.40, 1,253,026.80 and 386,301.60

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Solution

The fourth proportional to 834,890.40, 1,253,026.80 and 386,301.60 is: 579,772.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,890.40 : 1,253,026.80 = 386,301.60 : x
  2. Step 2: Convert to fraction form
    834,890.40/1,253,026.80 = 386,301.60/x
  3. Step 3: Cross multiply
    834,890.40x = 1,253,026.80 × 386,301.60
  4. Step 4: Simplify right side
    834,890.40x = 484,046,257,682.88
  5. Step 5: Solve for x
    x = 484,046,257,682.88/834,890.40
  6. Step 6: Final answer
    x = 579,772.22

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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.