Home / 613,217.98-845,516.64-419,719.11

Finding the Fourth Proportional to 613,217.98, 845,516.64 and 419,719.11

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Solution

The fourth proportional to 613,217.98, 845,516.64 and 419,719.11 is: 578,716.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,217.98 : 845,516.64 = 419,719.11 : x
  2. Step 2: Convert to fraction form
    613,217.98/845,516.64 = 419,719.11/x
  3. Step 3: Cross multiply
    613,217.98x = 845,516.64 × 419,719.11
  4. Step 4: Simplify right side
    613,217.98x = 354,879,491,630.99
  5. Step 5: Solve for x
    x = 354,879,491,630.99/613,217.98
  6. Step 6: Final answer
    x = 578,716.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.