Home / 657,151.72-985,763.45-207,839.05

Finding the Fourth Proportional to 657,151.72, 985,763.45 and 207,839.05

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Solution

The fourth proportional to 657,151.72, 985,763.45 and 207,839.05 is: 311,769.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,151.72 : 985,763.45 = 207,839.05 : x
  2. Step 2: Convert to fraction form
    657,151.72/985,763.45 = 207,839.05/x
  3. Step 3: Cross multiply
    657,151.72x = 985,763.45 × 207,839.05
  4. Step 4: Simplify right side
    657,151.72x = 204,880,137,027.91
  5. Step 5: Solve for x
    x = 204,880,137,027.91/657,151.72
  6. Step 6: Final answer
    x = 311,769.92

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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.