Home / 817,912.40-1,226,868.60-257,003.60

Finding the Fourth Proportional to 817,912.40, 1,226,868.60 and 257,003.60

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Solution

The fourth proportional to 817,912.40, 1,226,868.60 and 257,003.60 is: 385,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,912.40 : 1,226,868.60 = 257,003.60 : x
  2. Step 2: Convert to fraction form
    817,912.40/1,226,868.60 = 257,003.60/x
  3. Step 3: Cross multiply
    817,912.40x = 1,226,868.60 × 257,003.60
  4. Step 4: Simplify right side
    817,912.40x = 315,309,646,926.96
  5. Step 5: Solve for x
    x = 315,309,646,926.96/817,912.40
  6. Step 6: Final answer
    x = 385,505.40

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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.