Home / 782,639.57-1,174,485.45-277,198.76

Finding the Fourth Proportional to 782,639.57, 1,174,485.45 and 277,198.76

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Solution

The fourth proportional to 782,639.57, 1,174,485.45 and 277,198.76 is: 415,984.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,639.57 : 1,174,485.45 = 277,198.76 : x
  2. Step 2: Convert to fraction form
    782,639.57/1,174,485.45 = 277,198.76/x
  3. Step 3: Cross multiply
    782,639.57x = 1,174,485.45 × 277,198.76
  4. Step 4: Simplify right side
    782,639.57x = 325,565,910,378.04
  5. Step 5: Solve for x
    x = 325,565,910,378.04/782,639.57
  6. Step 6: Final answer
    x = 415,984.47

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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.