Home / 657,908.20-985,550.10-458,453.80

Finding the Fourth Proportional to 657,908.20, 985,550.10 and 458,453.80

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Solution

The fourth proportional to 657,908.20, 985,550.10 and 458,453.80 is: 686,766.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,908.20 : 985,550.10 = 458,453.80 : x
  2. Step 2: Convert to fraction form
    657,908.20/985,550.10 = 458,453.80/x
  3. Step 3: Cross multiply
    657,908.20x = 985,550.10 × 458,453.80
  4. Step 4: Simplify right side
    657,908.20x = 451,829,188,435.38
  5. Step 5: Solve for x
    x = 451,829,188,435.38/657,908.20
  6. Step 6: Final answer
    x = 686,766.31

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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.