Home / 637,974.09-957,148.25-188,706.78

Finding the Fourth Proportional to 637,974.09, 957,148.25 and 188,706.78

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Solution

The fourth proportional to 637,974.09, 957,148.25 and 188,706.78 is: 283,115.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,974.09 : 957,148.25 = 188,706.78 : x
  2. Step 2: Convert to fraction form
    637,974.09/957,148.25 = 188,706.78/x
  3. Step 3: Cross multiply
    637,974.09x = 957,148.25 × 188,706.78
  4. Step 4: Simplify right side
    637,974.09x = 180,620,366,633.01
  5. Step 5: Solve for x
    x = 180,620,366,633.01/637,974.09
  6. Step 6: Final answer
    x = 283,115.52

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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.