Home / 445,131.95-613,943.03-383,147.96

Finding the Fourth Proportional to 445,131.95, 613,943.03 and 383,147.96

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Solution

The fourth proportional to 445,131.95, 613,943.03 and 383,147.96 is: 528,452.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,131.95 : 613,943.03 = 383,147.96 : x
  2. Step 2: Convert to fraction form
    445,131.95/613,943.03 = 383,147.96/x
  3. Step 3: Cross multiply
    445,131.95x = 613,943.03 × 383,147.96
  4. Step 4: Simplify right side
    445,131.95x = 235,231,014,515.26
  5. Step 5: Solve for x
    x = 235,231,014,515.26/445,131.95
  6. Step 6: Final answer
    x = 528,452.33

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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.