Home / 393,948.72-591,107.63-194,160.20

Finding the Fourth Proportional to 393,948.72, 591,107.63 and 194,160.20

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Solution

The fourth proportional to 393,948.72, 591,107.63 and 194,160.20 is: 291,331.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,948.72 : 591,107.63 = 194,160.20 : x
  2. Step 2: Convert to fraction form
    393,948.72/591,107.63 = 194,160.20/x
  3. Step 3: Cross multiply
    393,948.72x = 591,107.63 × 194,160.20
  4. Step 4: Simplify right side
    393,948.72x = 114,769,571,735.99
  5. Step 5: Solve for x
    x = 114,769,571,735.99/393,948.72
  6. Step 6: Final answer
    x = 291,331.25

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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.