Home / 394,549.40-591,824.10-145,328.60

Finding the Fourth Proportional to 394,549.40, 591,824.10 and 145,328.60

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Solution

The fourth proportional to 394,549.40, 591,824.10 and 145,328.60 is: 217,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,549.40 : 591,824.10 = 145,328.60 : x
  2. Step 2: Convert to fraction form
    394,549.40/591,824.10 = 145,328.60/x
  3. Step 3: Cross multiply
    394,549.40x = 591,824.10 × 145,328.60
  4. Step 4: Simplify right side
    394,549.40x = 86,008,967,899.26
  5. Step 5: Solve for x
    x = 86,008,967,899.26/394,549.40
  6. Step 6: Final answer
    x = 217,992.90

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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.