Home / 459,919.88-689,827.26-122,986.80

Finding the Fourth Proportional to 459,919.88, 689,827.26 and 122,986.80

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Solution

The fourth proportional to 459,919.88, 689,827.26 and 122,986.80 is: 184,466.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,919.88 : 689,827.26 = 122,986.80 : x
  2. Step 2: Convert to fraction form
    459,919.88/689,827.26 = 122,986.80/x
  3. Step 3: Cross multiply
    459,919.88x = 689,827.26 × 122,986.80
  4. Step 4: Simplify right side
    459,919.88x = 84,839,647,029.57
  5. Step 5: Solve for x
    x = 84,839,647,029.57/459,919.88
  6. Step 6: Final answer
    x = 184,466.14

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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.