Home / 419,125.82-577,291.78-322,144.21

Finding the Fourth Proportional to 419,125.82, 577,291.78 and 322,144.21

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Solution

The fourth proportional to 419,125.82, 577,291.78 and 322,144.21 is: 443,712.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,125.82 : 577,291.78 = 322,144.21 : x
  2. Step 2: Convert to fraction form
    419,125.82/577,291.78 = 322,144.21/x
  3. Step 3: Cross multiply
    419,125.82x = 577,291.78 × 322,144.21
  4. Step 4: Simplify right side
    419,125.82x = 185,971,204,407.59
  5. Step 5: Solve for x
    x = 185,971,204,407.59/419,125.82
  6. Step 6: Final answer
    x = 443,712.12

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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.