Home / 957,806.07-1,321,782.69-522,219.86

Finding the Fourth Proportional to 957,806.07, 1,321,782.69 and 522,219.86

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Solution

The fourth proportional to 957,806.07, 1,321,782.69 and 522,219.86 is: 720,669.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,806.07 : 1,321,782.69 = 522,219.86 : x
  2. Step 2: Convert to fraction form
    957,806.07/1,321,782.69 = 522,219.86/x
  3. Step 3: Cross multiply
    957,806.07x = 1,321,782.69 × 522,219.86
  4. Step 4: Simplify right side
    957,806.07x = 690,261,171,628.32
  5. Step 5: Solve for x
    x = 690,261,171,628.32/957,806.07
  6. Step 6: Final answer
    x = 720,669.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.