Home / 638,119.90-957,007.05-188,839.90

Finding the Fourth Proportional to 638,119.90, 957,007.05 and 188,839.90

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Solution

The fourth proportional to 638,119.90, 957,007.05 and 188,839.90 is: 283,208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,119.90 : 957,007.05 = 188,839.90 : x
  2. Step 2: Convert to fraction form
    638,119.90/957,007.05 = 188,839.90/x
  3. Step 3: Cross multiply
    638,119.90x = 957,007.05 × 188,839.90
  4. Step 4: Simplify right side
    638,119.90x = 180,721,115,621.30
  5. Step 5: Solve for x
    x = 180,721,115,621.30/638,119.90
  6. Step 6: Final answer
    x = 283,208.71

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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.