Home / 812,843.22-1,214,321.00-526,198.61

Finding the Fourth Proportional to 812,843.22, 1,214,321.00 and 526,198.61

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Solution

The fourth proportional to 812,843.22, 1,214,321.00 and 526,198.61 is: 786,097.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,843.22 : 1,214,321.00 = 526,198.61 : x
  2. Step 2: Convert to fraction form
    812,843.22/1,214,321.00 = 526,198.61/x
  3. Step 3: Cross multiply
    812,843.22x = 1,214,321.00 × 526,198.61
  4. Step 4: Simplify right side
    812,843.22x = 638,974,013,591.21
  5. Step 5: Solve for x
    x = 638,974,013,591.21/812,843.22
  6. Step 6: Final answer
    x = 786,097.49

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.