Home / 638,496.09-957,747.56-189,220.85

Finding the Fourth Proportional to 638,496.09, 957,747.56 and 189,220.85

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Solution

The fourth proportional to 638,496.09, 957,747.56 and 189,220.85 is: 283,832.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,496.09 : 957,747.56 = 189,220.85 : x
  2. Step 2: Convert to fraction form
    638,496.09/957,747.56 = 189,220.85/x
  3. Step 3: Cross multiply
    638,496.09x = 957,747.56 × 189,220.85
  4. Step 4: Simplify right side
    638,496.09x = 181,225,809,783.00
  5. Step 5: Solve for x
    x = 181,225,809,783.00/638,496.09
  6. Step 6: Final answer
    x = 283,832.29

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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.