Home / 638,285.49-957,431.34-189,014.85

Finding the Fourth Proportional to 638,285.49, 957,431.34 and 189,014.85

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Solution

The fourth proportional to 638,285.49, 957,431.34 and 189,014.85 is: 283,523.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,285.49 : 957,431.34 = 189,014.85 : x
  2. Step 2: Convert to fraction form
    638,285.49/957,431.34 = 189,014.85/x
  3. Step 3: Cross multiply
    638,285.49x = 957,431.34 × 189,014.85
  4. Step 4: Simplify right side
    638,285.49x = 180,968,741,115.40
  5. Step 5: Solve for x
    x = 180,968,741,115.40/638,285.49
  6. Step 6: Final answer
    x = 283,523.19

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Double scale
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Similar ratio
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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.