Home / 657,110.70-985,119.30-278,322.30

Finding the Fourth Proportional to 657,110.70, 985,119.30 and 278,322.30

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Solution

The fourth proportional to 657,110.70, 985,119.30 and 278,322.30 is: 417,251.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,110.70 : 985,119.30 = 278,322.30 : x
  2. Step 2: Convert to fraction form
    657,110.70/985,119.30 = 278,322.30/x
  3. Step 3: Cross multiply
    657,110.70x = 985,119.30 × 278,322.30
  4. Step 4: Simplify right side
    657,110.70x = 274,180,669,350.39
  5. Step 5: Solve for x
    x = 274,180,669,350.39/657,110.70
  6. Step 6: Final answer
    x = 417,251.87

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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.