Home / 638,378.48-957,273.32-188,938.64

Finding the Fourth Proportional to 638,378.48, 957,273.32 and 188,938.64

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Solution

The fourth proportional to 638,378.48, 957,273.32 and 188,938.64 is: 283,320.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,378.48 : 957,273.32 = 188,938.64 : x
  2. Step 2: Convert to fraction form
    638,378.48/957,273.32 = 188,938.64/x
  3. Step 3: Cross multiply
    638,378.48x = 957,273.32 × 188,938.64
  4. Step 4: Simplify right side
    638,378.48x = 180,865,919,189.09
  5. Step 5: Solve for x
    x = 180,865,919,189.09/638,378.48
  6. Step 6: Final answer
    x = 283,320.83

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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.