Home / 821,738.57-1,232,888.11-442,698.20

Finding the Fourth Proportional to 821,738.57, 1,232,888.11 and 442,698.20

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Solution

The fourth proportional to 821,738.57, 1,232,888.11 and 442,698.20 is: 664,198.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,738.57 : 1,232,888.11 = 442,698.20 : x
  2. Step 2: Convert to fraction form
    821,738.57/1,232,888.11 = 442,698.20/x
  3. Step 3: Cross multiply
    821,738.57x = 1,232,888.11 × 442,698.20
  4. Step 4: Simplify right side
    821,738.57x = 545,797,339,827.22
  5. Step 5: Solve for x
    x = 545,797,339,827.22/821,738.57
  6. Step 6: Final answer
    x = 664,198.27

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Double scale
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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.