Home / 825,223.78-1,138,863.59-462,671.12

Finding the Fourth Proportional to 825,223.78, 1,138,863.59 and 462,671.12

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Solution

The fourth proportional to 825,223.78, 1,138,863.59 and 462,671.12 is: 638,516.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,223.78 : 1,138,863.59 = 462,671.12 : x
  2. Step 2: Convert to fraction form
    825,223.78/1,138,863.59 = 462,671.12/x
  3. Step 3: Cross multiply
    825,223.78x = 1,138,863.59 × 462,671.12
  4. Step 4: Simplify right side
    825,223.78x = 526,919,297,583.87
  5. Step 5: Solve for x
    x = 526,919,297,583.87/825,223.78
  6. Step 6: Final answer
    x = 638,516.86

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Double scale
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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.