Home / 628,266.40-941,785.20-253,789.60

Finding the Fourth Proportional to 628,266.40, 941,785.20 and 253,789.60

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Solution

The fourth proportional to 628,266.40, 941,785.20 and 253,789.60 is: 380,436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,266.40 : 941,785.20 = 253,789.60 : x
  2. Step 2: Convert to fraction form
    628,266.40/941,785.20 = 253,789.60/x
  3. Step 3: Cross multiply
    628,266.40x = 941,785.20 × 253,789.60
  4. Step 4: Simplify right side
    628,266.40x = 239,015,289,193.92
  5. Step 5: Solve for x
    x = 239,015,289,193.92/628,266.40
  6. Step 6: Final answer
    x = 380,436.21

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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.