Home / 657,919.20-985,566.60-458,464.80

Finding the Fourth Proportional to 657,919.20, 985,566.60 and 458,464.80

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Solution

The fourth proportional to 657,919.20, 985,566.60 and 458,464.80 is: 686,782.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,919.20 : 985,566.60 = 458,464.80 : x
  2. Step 2: Convert to fraction form
    657,919.20/985,566.60 = 458,464.80/x
  3. Step 3: Cross multiply
    657,919.20x = 985,566.60 × 458,464.80
  4. Step 4: Simplify right side
    657,919.20x = 451,847,594,155.68
  5. Step 5: Solve for x
    x = 451,847,594,155.68/657,919.20
  6. Step 6: Final answer
    x = 686,782.81

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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.