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Finding the Fourth Proportional to 836,800.80, 1,255,201.20 and 804,141.60

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Solution

The fourth proportional to 836,800.80, 1,255,201.20 and 804,141.60 is: 1,206,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,800.80 : 1,255,201.20 = 804,141.60 : x
  2. Step 2: Convert to fraction form
    836,800.80/1,255,201.20 = 804,141.60/x
  3. Step 3: Cross multiply
    836,800.80x = 1,255,201.20 × 804,141.60
  4. Step 4: Simplify right side
    836,800.80x = 1,009,359,501,289.92
  5. Step 5: Solve for x
    x = 1,009,359,501,289.92/836,800.80
  6. Step 6: Final answer
    x = 1,206,212.40

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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.